31264172099 has 8 divisors (see below), whose sum is σ = 33115600080. Its totient is φ = 29414117376.

The previous prime is 31264172089. The next prime is 31264172189. The reversal of 31264172099 is 99027146213.

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 31264172099 - 2⁴ = 31264172083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31264172029) 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 7 ways as a sum of consecutive naturals, for example, 296249 + ... + 387674.

It is an arithmetic number, because the mean of its divisors is an integer number (4139450010).

Almost surely, 2^31264172099 is an apocalyptic number.

31264172099 is a deficient number, since it is larger than the sum of its proper divisors (1851427981).

31264172099 is a wasteful number, since it uses less digits than its factorization.

31264172099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686629.

The product of its (nonzero) digits is 163296, while the sum is 44.

The spelling of 31264172099 in words is "thirty-one billion, two hundred sixty-four million, one hundred seventy-two thousand, ninety-nine".