259012798489 has 9 divisors (see below), whose sum is σ = 265505655709. Its totient is φ = 252675055840.

The previous prime is 259012798459. The next prime is 259012798493. The reversal of 259012798489 is 984897210952.

The square root of 259012798489 is 508933.

It is a perfect power (a square), and thus also a powerful number.

259012798489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 125574553225 + 133438245264 = 354365^2 + 365292^2 .

It is not a de Polignac number, because 259012798489 - 2⁷ = 259012798361 is a prime.

It is a super-2 number, since 2×259012798489² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 259012798489.

It is not an unprimeable number, because it can be changed into a prime (259012798459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 20860047 + ... + 20872459.

Almost surely, 2^259012798489 is an apocalyptic number.

259012798489 is the 508933-rd square number.

259012798489 is the 254467-th centered octagonal number.

It is an amenable number.

259012798489 is a deficient number, since it is larger than the sum of its proper divisors (6492857220).

259012798489 is an frugal number, since it uses more digits than its factorization.

259012798489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24908 (or 12454 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 64.

Multiplying 259012798489 by its sum of digits (64), we get a square (16576819103296 = 4071464²).

It can be divided in two parts, 259012 and 798489, that added together give a palindrome (1057501).

The spelling of 259012798489 in words is "two hundred fifty-nine billion, twelve million, seven hundred ninety-eight thousand, four hundred eighty-nine".