260252259389 has 4 divisors (see below), whose sum is σ = 269226475260. Its totient is φ = 251278043520.

The previous prime is 260252259383. The next prime is 260252259409. The reversal of 260252259389 is 983952252062.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47138923225 + 213113336164 = 217115^2 + 461642^2 .

It is a cyclic number.

It is not a de Polignac number, because 260252259389 - 2⁴ = 260252259373 is a prime.

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 260252259389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260252259383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4487107892 + ... + 4487107949.

It is an arithmetic number, because the mean of its divisors is an integer number (67306618815).

Almost surely, 2^260252259389 is an apocalyptic number.

260252259389 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

260252259389 is a deficient number, since it is larger than the sum of its proper divisors (8974215871).

260252259389 is an equidigital number, since it uses as much as digits as its factorization.

260252259389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8974215870.

The product of its (nonzero) digits is 4665600, while the sum is 53.

The spelling of 260252259389 in words is "two hundred sixty billion, two hundred fifty-two million, two hundred fifty-nine thousand, three hundred eighty-nine".