21460652108 has 36 divisors (see below), whose sum is σ = 43707277152. Its totient is φ = 9193312800.

The previous prime is 21460652089. The next prime is 21460652141. The reversal of 21460652108 is 80125606412.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 437510 + ... + 484082.

It is an arithmetic number, because the mean of its divisors is an integer number (1214091032).

Almost surely, 2^21460652108 is an apocalyptic number.

21460652108 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

21460652108 is an abundant number, since it is smaller than the sum of its proper divisors (22246625044).

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

21460652108 is a wasteful number, since it uses less digits than its factorization.

21460652108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48942 (or 48933 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 21460652108 in words is "twenty-one billion, four hundred sixty million, six hundred fifty-two thousand, one hundred eight".