109772313172 has 12 divisors (see below), whose sum is σ = 196786951956. Its totient is φ = 53547469760.

The previous prime is 109772313163. The next prime is 109772313197. The reversal of 109772313172 is 271313277901.

It can be written as a sum of positive squares in 2 ways, for example, as 9033361936 + 100738951236 = 95044^2 + 317394^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334671523 + ... + 334671850.

It is an arithmetic number, because the mean of its divisors is an integer number (16398912663).

Almost surely, 2^109772313172 is an apocalyptic number.

It is an amenable number.

109772313172 is a deficient number, since it is larger than the sum of its proper divisors (87014638784).

109772313172 is a wasteful number, since it uses less digits than its factorization.

109772313172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669343418 (or 669343416 counting only the distinct ones).

The product of its (nonzero) digits is 111132, while the sum is 43.

The spelling of 109772313172 in words is "one hundred nine billion, seven hundred seventy-two million, three hundred thirteen thousand, one hundred seventy-two".