21470614504672 has 48 divisors (see below), whose sum is σ = 44110490149152. Its totient is φ = 10268000709120.

The previous prime is 21470614504657. The next prime is 21470614504697. The reversal of 21470614504672 is 27640541607412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13027522 + ... + 14582782.

It is an arithmetic number, because the mean of its divisors is an integer number (918968544774).

Almost surely, 2^{21470614504672} is an apocalyptic number.

It is an amenable number.

21470614504672 is an abundant number, since it is smaller than the sum of its proper divisors (22639875644480).

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

21470614504672 is a wasteful number, since it uses less digits than its factorization.

21470614504672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574051 (or 1574043 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 49.

The spelling of 21470614504672 in words is "twenty-one trillion, four hundred seventy billion, six hundred fourteen million, five hundred four thousand, six hundred seventy-two".