26057280680 has 32 divisors (see below), whose sum is σ = 60650569800. Its totient is φ = 10063501056.

The previous prime is 26057280677. The next prime is 26057280721. The reversal of 26057280680 is 8608275062.

It can be written as a sum of positive squares in 4 ways, for example, as 15791943556 + 10265337124 = 125666^2 + 101318^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11230427 + ... + 11232746.

Almost surely, 2^26057280680 is an apocalyptic number.

26057280680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26057280680 is an abundant number, since it is smaller than the sum of its proper divisors (34593289120).

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

26057280680 is a wasteful number, since it uses less digits than its factorization.

26057280680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22463213 (or 22463209 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 26057280680 in words is "twenty-six billion, fifty-seven million, two hundred eighty thousand, six hundred eighty".