72287606123 has 16 divisors (see below), whose sum is σ = 73590865920. Its totient is φ = 70997018400.

The previous prime is 72287606119. The next prime is 72287606129. The reversal of 72287606123 is 32160678227.

It is a cyclic number.

It is not a de Polignac number, because 72287606123 - 2² = 72287606119 is a prime.

It is a super-2 number, since 2×72287606123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72287606129) 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, 25898858 + ... + 25901648.

It is an arithmetic number, because the mean of its divisors is an integer number (4599429120).

Almost surely, 2^72287606123 is an apocalyptic number.

72287606123 is a deficient number, since it is larger than the sum of its proper divisors (1303259797).

72287606123 is a wasteful number, since it uses less digits than its factorization.

72287606123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4898.

The product of its (nonzero) digits is 338688, while the sum is 44.

The spelling of 72287606123 in words is "seventy-two billion, two hundred eighty-seven million, six hundred six thousand, one hundred twenty-three".