26516193408 has 96 divisors (see below), whose sum is σ = 77742968940. Its totient is φ = 8671942656.

The previous prime is 26516193391. The next prime is 26516193419. The reversal of 26516193408 is 80439161562.

26516193408 is a `hidden beast` number, since 2 + 6 + 51 + 6 + 193 + 408 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 26189596224 + 326597184 = 161832^2 + 18072^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156091 + ... + 278202.

Almost surely, 2^26516193408 is an apocalyptic number.

It is an amenable number.

26516193408 is an abundant number, since it is smaller than the sum of its proper divisors (51226775532).

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

26516193408 is a wasteful number, since it uses less digits than its factorization.

26516193408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434366 (or 434351 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 26516193408 in words is "twenty-six billion, five hundred sixteen million, one hundred ninety-three thousand, four hundred eight".