364215811944721 has 27 divisors (see below), whose sum is σ = 405237217283017. Its totient is φ = 327100414061960.

The previous prime is 364215811944661. The next prime is 364215811944739. The reversal of 364215811944721 is 127449118512463.

The square root of 364215811944721 is 19084439.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 364215811944721 - 2¹¹ = 364215811942673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (364215811944781) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 17424082356 + ... + 17424103258.

Almost surely, 2^{364215811944721} is an apocalyptic number.

364215811944721 is the 19084439-th square number.

364215811944721 is the 9542220-th centered octagonal number.

It is an amenable number.

364215811944721 is a deficient number, since it is larger than the sum of its proper divisors (41021405338296).

364215811944721 is an frugal number, since it uses more digits than its factorization.

364215811944721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41994 (or 20997 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 58.

The spelling of 364215811944721 in words is "three hundred sixty-four trillion, two hundred fifteen billion, eight hundred eleven million, nine hundred forty-four thousand, seven hundred twenty-one".