21113011626508 has 6 divisors (see below), whose sum is σ = 36947770346396. Its totient is φ = 10556505813252.

The previous prime is 21113011626493. The next prime is 21113011626529. The reversal of 21113011626508 is 80562611031112.

21113011626508 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2639126453310 + ... + 2639126453317.

Almost surely, 2^{21113011626508} is an apocalyptic number.

It is an amenable number.

21113011626508 is a deficient number, since it is larger than the sum of its proper divisors (15834758719888).

21113011626508 is a wasteful number, since it uses less digits than its factorization.

21113011626508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5278252906631 (or 5278252906629 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 37.

The spelling of 21113011626508 in words is "twenty-one trillion, one hundred thirteen billion, eleven million, six hundred twenty-six thousand, five hundred eight".