21602027591052 has 48 divisors (see below), whose sum is σ = 53370085249152. Its totient is φ = 6777059708160.

The previous prime is 21602027590873. The next prime is 21602027591059. The reversal of 21602027591052 is 25019572020612.

It is a junction number, because it is equal to n+sod(n) for n = 21602027590995 and 21602027591013.

It is not an unprimeable number, because it can be changed into a prime (21602027591059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39960927 + ... + 40497897.

It is an arithmetic number, because the mean of its divisors is an integer number (1111876776024).

Almost surely, 2^{21602027591052} is an apocalyptic number.

It is an amenable number.

21602027591052 is an abundant number, since it is smaller than the sum of its proper divisors (31768057658100).

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

21602027591052 is a wasteful number, since it uses less digits than its factorization.

21602027591052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734198 (or 734196 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 21602027591052 in words is "twenty-one trillion, six hundred two billion, twenty-seven million, five hundred ninety-one thousand, fifty-two".