15631476852 has 48 divisors (see below), whose sum is σ = 38669388800. Its totient is φ = 4900733280.

The previous prime is 15631476851. The next prime is 15631476877. The reversal of 15631476852 is 25867413651.

It is a super-2 number, since 2×15631476852² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15631476851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214924 + ... + 278307.

Almost surely, 2^15631476852 is an apocalyptic number.

15631476852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15631476852 is an abundant number, since it is smaller than the sum of its proper divisors (23037911948).

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

15631476852 is a wasteful number, since it uses less digits than its factorization.

15631476852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493396 (or 493394 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 48.

The spelling of 15631476852 in words is "fifteen billion, six hundred thirty-one million, four hundred seventy-six thousand, eight hundred fifty-two".