31601921074 has 16 divisors (see below), whose sum is σ = 47562137280. Its totient is φ = 15747949360.

The previous prime is 31601921063. The next prime is 31601921107. The reversal of 31601921074 is 47012910613.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 871347 + ... + 906889.

It is an arithmetic number, because the mean of its divisors is an integer number (2972633580).

Almost surely, 2^31601921074 is an apocalyptic number.

31601921074 is a deficient number, since it is larger than the sum of its proper divisors (15960216206).

31601921074 is a wasteful number, since it uses less digits than its factorization.

31601921074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37025.

The product of its (nonzero) digits is 9072, while the sum is 34.

The spelling of 31601921074 in words is "thirty-one billion, six hundred one million, nine hundred twenty-one thousand, seventy-four".