31937490105 has 16 divisors (see below), whose sum is σ = 51127399104. Its totient is φ = 17024189760.

The previous prime is 31937490077. The next prime is 31937490161. The reversal of 31937490105 is 50109473913.

It is not a de Polignac number, because 31937490105 - 2⁹ = 31937489593 is a prime.

It is a super-2 number, since 2×31937490105² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 542206 + ... + 598215.

It is an arithmetic number, because the mean of its divisors is an integer number (3195462444).

Almost surely, 2^31937490105 is an apocalyptic number.

It is an amenable number.

31937490105 is a deficient number, since it is larger than the sum of its proper divisors (19189908999).

31937490105 is a wasteful number, since it uses less digits than its factorization.

31937490105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142296.

The product of its (nonzero) digits is 102060, while the sum is 42.

The spelling of 31937490105 in words is "thirty-one billion, nine hundred thirty-seven million, four hundred ninety thousand, one hundred five".