72373856890454 has 8 divisors (see below), whose sum is σ = 124069468955088. Its totient is φ = 31017367238760.

The previous prime is 72373856890453. The next prime is 72373856890457. The reversal of 72373856890454 is 45409865837327.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×72373856890454² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72373856890453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2584780603217 + ... + 2584780603244.

It is an arithmetic number, because the mean of its divisors is an integer number (15508683619386).

Almost surely, 2^{72373856890454} is an apocalyptic number.

72373856890454 is a deficient number, since it is larger than the sum of its proper divisors (51695612064634).

72373856890454 is a wasteful number, since it uses less digits than its factorization.

72373856890454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5169561206470.

The product of its (nonzero) digits is 1219276800, while the sum is 71.

The spelling of 72373856890454 in words is "seventy-two trillion, three hundred seventy-three billion, eight hundred fifty-six million, eight hundred ninety thousand, four hundred fifty-four".