31879850907 has 8 divisors (see below), whose sum is σ = 42520267584. Its totient is φ = 21246334088.

The previous prime is 31879850881. The next prime is 31879850909. The reversal of 31879850907 is 70905897813.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31879850907 - 2¹⁴ = 31879834523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31879850909) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1714173 + ... + 1732670.

It is an arithmetic number, because the mean of its divisors is an integer number (5315033448).

Almost surely, 2^31879850907 is an apocalyptic number.

31879850907 is a deficient number, since it is larger than the sum of its proper divisors (10640416677).

31879850907 is a wasteful number, since it uses less digits than its factorization.

31879850907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3449929.

The product of its (nonzero) digits is 3810240, while the sum is 57.

The spelling of 31879850907 in words is "thirty-one billion, eight hundred seventy-nine million, eight hundred fifty thousand, nine hundred seven".