31772541036 has 24 divisors (see below), whose sum is σ = 74207311360. Its totient is φ = 10580649552.

The previous prime is 31772541013. The next prime is 31772541043. The reversal of 31772541036 is 63014527713.

It is a junction number, because it is equal to n+sod(n) for n = 31772540985 and 31772541003.

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, 1261696 + ... + 1286631.

Almost surely, 2^31772541036 is an apocalyptic number.

It is an amenable number.

31772541036 is an abundant number, since it is smaller than the sum of its proper divisors (42434770324).

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

31772541036 is a wasteful number, since it uses less digits than its factorization.

31772541036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2549373 (or 2549371 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 39.

The spelling of 31772541036 in words is "thirty-one billion, seven hundred seventy-two million, five hundred forty-one thousand, thirty-six".