31004077938650 has 24 divisors (see below), whose sum is σ = 57670335479484. Its totient is φ = 12401039667200.

The previous prime is 31004077938649. The next prime is 31004077938671. The reversal of 31004077938650 is 5683977040013.

It can be written as a sum of positive squares in 6 ways, for example, as 5465781085801 + 25538296852849 = 2337901^2 + 5053543^2 .

It is a super-2 number, since 2×31004077938650² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31004077938592 and 31004077938601.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13728167 + ... + 15826266.

Almost surely, 2^{31004077938650} is an apocalyptic number.

31004077938650 is a deficient number, since it is larger than the sum of its proper divisors (26666257540834).

31004077938650 is a wasteful number, since it uses less digits than its factorization.

31004077938650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29575426 (or 29575421 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 53.

The spelling of 31004077938650 in words is "thirty-one trillion, four billion, seventy-seven million, nine hundred thirty-eight thousand, six hundred fifty".