31890033014906 has 32 divisors (see below), whose sum is σ = 52771867346880. Its totient is φ = 14332886006400.

The previous prime is 31890033014899. The next prime is 31890033014929. The reversal of 31890033014906 is 60941033009813.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19175051 + ... + 20771678.

It is an arithmetic number, because the mean of its divisors is an integer number (1649120854590).

Almost surely, 2^{31890033014906} is an apocalyptic number.

31890033014906 is a deficient number, since it is larger than the sum of its proper divisors (20881834331974).

31890033014906 is a wasteful number, since it uses less digits than its factorization.

31890033014906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39947150.

The product of its (nonzero) digits is 419904, while the sum is 47.

The spelling of 31890033014906 in words is "thirty-one trillion, eight hundred ninety billion, thirty-three million, fourteen thousand, nine hundred six".