31682628636 has 12 divisors (see below), whose sum is σ = 73926133512. Its totient is φ = 10560876208.

The previous prime is 31682628581. The next prime is 31682628641. The reversal of 31682628636 is 63682628613.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1320109515 + ... + 1320109538.

It is an arithmetic number, because the mean of its divisors is an integer number (6160511126).

Almost surely, 2^31682628636 is an apocalyptic number.

It is an amenable number.

31682628636 is an abundant number, since it is smaller than the sum of its proper divisors (42243504876).

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

31682628636 is a wasteful number, since it uses less digits than its factorization.

31682628636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2640219060 (or 2640219058 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 51.

The spelling of 31682628636 in words is "thirty-one billion, six hundred eighty-two million, six hundred twenty-eight thousand, six hundred thirty-six".