72461445723 has 16 divisors (see below), whose sum is σ = 109169788800. Its totient is φ = 47488856040.

The previous prime is 72461445713. The next prime is 72461445739. The reversal of 72461445723 is 32754416427.

72461445723 is a `hidden beast` number, since 7 + 2 + 4 + 614 + 4 + 5 + 7 + 23 = 666.

It is not a de Polignac number, because 72461445723 - 2¹² = 72461441627 is a prime.

It is a super-2 number, since 2×72461445723² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72461445703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22742113 + ... + 22745298.

It is an arithmetic number, because the mean of its divisors is an integer number (6823111800).

Almost surely, 2^72461445723 is an apocalyptic number.

72461445723 is a deficient number, since it is larger than the sum of its proper divisors (36708343077).

72461445723 is a wasteful number, since it uses less digits than its factorization.

72461445723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45487479 (or 45487473 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 45.

The spelling of 72461445723 in words is "seventy-two billion, four hundred sixty-one million, four hundred forty-five thousand, seven hundred twenty-three".