72976415138243 has 8 divisors (see below), whose sum is σ = 74011040269056. Its totient is φ = 71941978571400.

The previous prime is 72976415138213. The next prime is 72976415138281. The reversal of 72976415138243 is 34283151467927.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72976415138243 is a prime.

It is a super-2 number, since 2×72976415138243² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72976415138213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46361393 + ... + 47909618.

It is an arithmetic number, because the mean of its divisors is an integer number (9251380033632).

Almost surely, 2^{72976415138243} is an apocalyptic number.

72976415138243 is a deficient number, since it is larger than the sum of its proper divisors (1034625130813).

72976415138243 is a wasteful number, since it uses less digits than its factorization.

72976415138243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94281985.

The product of its digits is 60963840, while the sum is 62.

The spelling of 72976415138243 in words is "seventy-two trillion, nine hundred seventy-six billion, four hundred fifteen million, one hundred thirty-eight thousand, two hundred forty-three".