5631387612 has 24 divisors (see below), whose sum is σ = 13142000256. Its totient is φ = 1876829808.

The previous prime is 5631387571. The next prime is 5631387623. The reversal of 5631387612 is 2167831365.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48913 + ... + 116855.

It is an arithmetic number, because the mean of its divisors is an integer number (547583344).

Almost surely, 2^5631387612 is an apocalyptic number.

It is an amenable number.

5631387612 is an abundant number, since it is smaller than the sum of its proper divisors (7510612644).

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

5631387612 is a wasteful number, since it uses less digits than its factorization.

5631387612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74857 (or 74855 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 5631387612 is about 75042.5719975002. The cubic root of 5631387612 is about 1779.1195843832.

The spelling of 5631387612 in words is "five billion, six hundred thirty-one million, three hundred eighty-seven thousand, six hundred twelve".