72454577462 has 4 divisors (see below), whose sum is σ = 108681866196. Its totient is φ = 36227288730.

The previous prime is 72454577443. The next prime is 72454577477. The reversal of 72454577462 is 26477545427.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 26477545427 = 163 ⋅162438929.

It is a super-2 number, since 2×72454577462² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18113644364 + ... + 18113644367.

It is an arithmetic number, because the mean of its divisors is an integer number (27170466549).

Almost surely, 2^72454577462 is an apocalyptic number.

72454577462 is a deficient number, since it is larger than the sum of its proper divisors (36227288734).

72454577462 is a wasteful number, since it uses less digits than its factorization.

72454577462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36227288733.

The product of its digits is 13171200, while the sum is 53.

The spelling of 72454577462 in words is "seventy-two billion, four hundred fifty-four million, five hundred seventy-seven thousand, four hundred sixty-two".