26256611610 has 24 divisors (see below), whose sum is σ = 68267190420. Its totient is φ = 7001763072.

The previous prime is 26256611597. The next prime is 26256611611. The reversal of 26256611610 is 1611665262.

26256611610 is a `hidden beast` number, since 2 + 6 + 25 + 6 + 6 + 11 + 610 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 25023126969 + 1233484641 = 158187^2 + 35121^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26256611611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145869975 + ... + 145870154.

Almost surely, 2^26256611610 is an apocalyptic number.

26256611610 is an abundant number, since it is smaller than the sum of its proper divisors (42010578810).

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

26256611610 is a wasteful number, since it uses less digits than its factorization.

26256611610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291740142 (or 291740139 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 26256611610 in words is "twenty-six billion, two hundred fifty-six million, six hundred eleven thousand, six hundred ten".