31005058072 has 16 divisors (see below), whose sum is σ = 58235245560. Its totient is φ = 15475659264.

The previous prime is 31005058061. The next prime is 31005058157. The reversal of 31005058072 is 27085050013.

It is a super-2 number, since 2×31005058072² (a number of 22 digits) contains 22 as substring.

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, 3353818 + ... + 3363049.

Almost surely, 2^31005058072 is an apocalyptic number.

It is an amenable number.

31005058072 is a deficient number, since it is larger than the sum of its proper divisors (27230187488).

31005058072 is a wasteful number, since it uses less digits than its factorization.

31005058072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6717450 (or 6717446 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The spelling of 31005058072 in words is "thirty-one billion, five million, fifty-eight thousand, seventy-two".