30995664137 has 6 divisors (see below), whose sum is σ = 32926190238. Its totient is φ = 29172389504.

The previous prime is 30995664083. The next prime is 30995664143. The reversal of 30995664137 is 73146659903.

It can be written as a sum of positive squares in 3 ways, for example, as 19094817856 + 11900846281 = 138184^2 + 109091^2 .

It is not a de Polignac number, because 30995664137 - 2³⁰ = 29921922313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30995664737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53625428 + ... + 53626005.

It is an arithmetic number, because the mean of its divisors is an integer number (5487698373).

Almost surely, 2^30995664137 is an apocalyptic number.

It is an amenable number.

30995664137 is a deficient number, since it is larger than the sum of its proper divisors (1930526101).

30995664137 is a wasteful number, since it uses less digits than its factorization.

30995664137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107251467 (or 107251450 counting only the distinct ones).

The product of its (nonzero) digits is 3674160, while the sum is 53.

The spelling of 30995664137 in words is "thirty billion, nine hundred ninety-five million, six hundred sixty-four thousand, one hundred thirty-seven".