21462917064090 has 32 divisors (see below), whose sum is σ = 52903190171520. Its totient is φ = 5568756859584.

The previous prime is 21462917064089. The next prime is 21462917064133. The reversal of 21462917064090 is 9046071926412.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9667979550 + ... + 9667981769.

It is an arithmetic number, because the mean of its divisors is an integer number (1653224692860).

Almost surely, 2^{21462917064090} is an apocalyptic number.

21462917064090 is an abundant number, since it is smaller than the sum of its proper divisors (31440273107430).

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

21462917064090 is a wasteful number, since it uses less digits than its factorization.

21462917064090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19335961366.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 21462917064090 in words is "twenty-one trillion, four hundred sixty-two billion, nine hundred seventeen million, sixty-four thousand, ninety".