21652432612026 has 64 divisors (see below), whose sum is σ = 43985138835456. Its totient is φ = 7104433548800.

The previous prime is 21652432612003. The next prime is 21652432612033. The reversal of 21652432612026 is 62021623425612.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 709970410 + ... + 710000906.

It is an arithmetic number, because the mean of its divisors is an integer number (687267794304).

Almost surely, 2^{21652432612026} is an apocalyptic number.

21652432612026 is an abundant number, since it is smaller than the sum of its proper divisors (22332706223430).

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

21652432612026 is a wasteful number, since it uses less digits than its factorization.

21652432612026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33187.

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 21652432612026 in words is "twenty-one trillion, six hundred fifty-two billion, four hundred thirty-two million, six hundred twelve thousand, twenty-six".