21364757334315 has 12 divisors (see below), whose sum is σ = 37032246046224. Its totient is φ = 11394537244944.

The previous prime is 21364757334287. The next prime is 21364757334397. The reversal of 21364757334315 is 51343375746312.

21364757334315 is a `hidden beast` number, since 2 + 1 + 3 + 6 + 4 + 7 + 573 + 34 + 31 + 5 = 666.

It is not a de Polignac number, because 21364757334315 - 2²⁷ = 21364623116587 is a prime.

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, 237386192559 + ... + 237386192648.

It is an arithmetic number, because the mean of its divisors is an integer number (3086020503852).

Almost surely, 2^{21364757334315} is an apocalyptic number.

21364757334315 is a deficient number, since it is larger than the sum of its proper divisors (15667488711909).

21364757334315 is a wasteful number, since it uses less digits than its factorization.

21364757334315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474772385218 (or 474772385215 counting only the distinct ones).

The product of its digits is 19051200, while the sum is 54.

The spelling of 21364757334315 in words is "twenty-one trillion, three hundred sixty-four billion, seven hundred fifty-seven million, three hundred thirty-four thousand, three hundred fifteen".