31845750099 has 16 divisors (see below), whose sum is σ = 42798269184. Its totient is φ = 21061965600.

The previous prime is 31845750073. The next prime is 31845750107. The reversal of 31845750099 is 99005754813.

It is not a de Polignac number, because 31845750099 - 2²⁰ = 31844701523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31845750059) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1503714 + ... + 1524744.

It is an arithmetic number, because the mean of its divisors is an integer number (2674891824).

Almost surely, 2^31845750099 is an apocalyptic number.

31845750099 is a deficient number, since it is larger than the sum of its proper divisors (10952519085).

31845750099 is a wasteful number, since it uses less digits than its factorization.

31845750099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25018.

The product of its (nonzero) digits is 1360800, while the sum is 51.

The spelling of 31845750099 in words is "thirty-one billion, eight hundred forty-five million, seven hundred fifty thousand, ninety-nine".