386520634804315 has 64 divisors (see below), whose sum is σ = 508855606631424. Its totient is φ = 279519252480000.

The previous prime is 386520634804303. The next prime is 386520634804319. The reversal of 386520634804315 is 513408436025683.

It is a de Polignac number, because none of the positive numbers 2^k-386520634804315 is a prime.

It is a super-2 number, since 2×386520634804315² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 386520634804315.

It is not an unprimeable number, because it can be changed into a prime (386520634804319) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18990833179 + ... + 18990853531.

It is an arithmetic number, because the mean of its divisors is an integer number (7950868853616).

Almost surely, 2^{386520634804315} is an apocalyptic number.

386520634804315 is a deficient number, since it is larger than the sum of its proper divisors (122334971827109).

386520634804315 is a wasteful number, since it uses less digits than its factorization.

386520634804315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23332.

The product of its (nonzero) digits is 49766400, while the sum is 58.

The spelling of 386520634804315 in words is "three hundred eighty-six trillion, five hundred twenty billion, six hundred thirty-four million, eight hundred four thousand, three hundred fifteen".