26644802453136 has 120 divisors (see below), whose sum is σ = 85649321763200. Its totient is φ = 7574545363968.

The previous prime is 26644802453117. The next prime is 26644802453173. The reversal of 26644802453136 is 63135420844662.

26644802453136 is a `hidden beast` number, since 2 + 6 + 6 + 4 + 4 + 80 + 24 + 531 + 3 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66214825 + ... + 66616008.

Almost surely, 2^{26644802453136} is an apocalyptic number.

It is an amenable number.

26644802453136 is an abundant number, since it is smaller than the sum of its proper divisors (59004519310064).

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

26644802453136 is a wasteful number, since it uses less digits than its factorization.

26644802453136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132831053 (or 132831044 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 54.

The spelling of 26644802453136 in words is "twenty-six trillion, six hundred forty-four billion, eight hundred two million, four hundred fifty-three thousand, one hundred thirty-six".