31814108707 has 4 divisors (see below), whose sum is σ = 31973978800. Its totient is φ = 31654238616.

The previous prime is 31814108693. The next prime is 31814108743. The reversal of 31814108707 is 70780141813.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31814108707 - 2¹⁹ = 31813584419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31814108707.

It is not an unprimeable number, because it can be changed into a prime (31814108747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79934748 + ... + 79935145.

It is an arithmetic number, because the mean of its divisors is an integer number (7993494700).

Almost surely, 2^31814108707 is an apocalyptic number.

31814108707 is a deficient number, since it is larger than the sum of its proper divisors (159870093).

31814108707 is a wasteful number, since it uses less digits than its factorization.

31814108707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159870092.

The product of its (nonzero) digits is 37632, while the sum is 40.

The spelling of 31814108707 in words is "thirty-one billion, eight hundred fourteen million, one hundred eight thousand, seven hundred seven".