815630827095 has 48 divisors (see below), whose sum is σ = 1650103004160. Its totient is φ = 364926612672.

The previous prime is 815630827069. The next prime is 815630827097. The reversal of 815630827095 is 590728036518.

815630827095 is a `hidden beast` number, since 8 + 1 + 563 + 0 + 8 + 2 + 70 + 9 + 5 = 666.

It is not a de Polignac number, because 815630827095 - 2²¹ = 815628729943 is a prime.

It is a super-2 number, since 2×815630827095² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (815630827097) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27530985 + ... + 27560594.

It is an arithmetic number, because the mean of its divisors is an integer number (34377145920).

Almost surely, 2^815630827095 is an apocalyptic number.

815630827095 is an abundant number, since it is smaller than the sum of its proper divisors (834472177065).

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

815630827095 is a wasteful number, since it uses less digits than its factorization.

815630827095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55091644 (or 55091641 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 815630827095 in words is "eight hundred fifteen billion, six hundred thirty million, eight hundred twenty-seven thousand, ninety-five".