72112875785 has 16 divisors (see below), whose sum is σ = 91100108160. Its totient is φ = 54647873280.

The previous prime is 72112875761. The next prime is 72112875787. The reversal of 72112875785 is 58757821127.

It is not a de Polignac number, because 72112875785 - 2²² = 72108681481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72112875787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 931100 + ... + 1005570.

It is an arithmetic number, because the mean of its divisors is an integer number (5693756760).

Almost surely, 2^72112875785 is an apocalyptic number.

It is an amenable number.

72112875785 is a deficient number, since it is larger than the sum of its proper divisors (18987232375).

72112875785 is a wasteful number, since it uses less digits than its factorization.

72112875785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84688.

The product of its digits is 2195200, while the sum is 53.

The spelling of 72112875785 in words is "seventy-two billion, one hundred twelve million, eight hundred seventy-five thousand, seven hundred eighty-five".