72112313623 has 16 divisors (see below), whose sum is σ = 84151400256. Its totient is φ = 60512624640.

The previous prime is 72112313621. The next prime is 72112313627. The reversal of 72112313623 is 32631321127.

It is a cyclic number.

It is not a de Polignac number, because 72112313623 - 2¹ = 72112313621 is a prime.

It is a super-2 number, since 2×72112313623² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72112313621) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 39786 + ... + 381847.

It is an arithmetic number, because the mean of its divisors is an integer number (5259462516).

Almost surely, 2^72112313623 is an apocalyptic number.

72112313623 is a deficient number, since it is larger than the sum of its proper divisors (12039086633).

72112313623 is a wasteful number, since it uses less digits than its factorization.

72112313623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422154.

The product of its digits is 9072, while the sum is 31.

The spelling of 72112313623 in words is "seventy-two billion, one hundred twelve million, three hundred thirteen thousand, six hundred twenty-three".