26057697408 has 80 divisors (see below), whose sum is σ = 77547316110. Its totient is φ = 8685895680.

The previous prime is 26057697361. The next prime is 26057697431. The reversal of 26057697408 is 80479675062.

26057697408 is a `hidden beast` number, since 2 + 60 + 576 + 9 + 7 + 4 + 0 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14096337984 + 11961359424 = 118728^2 + 109368^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1246273 + ... + 1267008.

Almost surely, 2^26057697408 is an apocalyptic number.

It is an amenable number.

26057697408 is an abundant number, since it is smaller than the sum of its proper divisors (51489618702).

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

26057697408 is an equidigital number, since it uses as much as digits as its factorization.

26057697408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513307 (or 2513286 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 26057697408 in words is "twenty-six billion, fifty-seven million, six hundred ninety-seven thousand, four hundred eight".