26117508128 has 24 divisors (see below), whose sum is σ = 51449868288. Its totient is φ = 13050874944.

The previous prime is 26117508103. The next prime is 26117508133. The reversal of 26117508128 is 82180571162.

It is a super-2 number, since 2×26117508128² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 192176 + ... + 298607.

It is an arithmetic number, because the mean of its divisors is an integer number (2143744512).

Almost surely, 2^26117508128 is an apocalyptic number.

It is an amenable number.

26117508128 is a deficient number, since it is larger than the sum of its proper divisors (25332360160).

26117508128 is a wasteful number, since it uses less digits than its factorization.

26117508128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492456 (or 492448 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 41.

The spelling of 26117508128 in words is "twenty-six billion, one hundred seventeen million, five hundred eight thousand, one hundred twenty-eight".