259481621380 has 12 divisors (see below), whose sum is σ = 544911404940. Its totient is φ = 103792648544.

The previous prime is 259481621363. The next prime is 259481621381. The reversal of 259481621380 is 83126184952.

259481621380 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 2 ways, for example, as 29098901056 + 230382720324 = 170584^2 + 479982^2 .

It is not an unprimeable number, because it can be changed into a prime (259481621381) 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 3 ways as a sum of consecutive naturals, for example, 6487040515 + ... + 6487040554.

It is an arithmetic number, because the mean of its divisors is an integer number (45409283745).

Almost surely, 2^259481621380 is an apocalyptic number.

259481621380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

259481621380 is an abundant number, since it is smaller than the sum of its proper divisors (285429783560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

259481621380 is a wasteful number, since it uses less digits than its factorization.

259481621380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12974081078 (or 12974081076 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 259481621380 in words is "two hundred fifty-nine billion, four hundred eighty-one million, six hundred twenty-one thousand, three hundred eighty".