72973716479 has 8 divisors (see below), whose sum is σ = 75570645360. Its totient is φ = 70382160576.

The previous prime is 72973716467. The next prime is 72973716481. The reversal of 72973716479 is 97461737927.

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

It is a cyclic number.

It is not a de Polignac number, because 72973716479 - 2²⁸ = 72705281023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72973716419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1315589 + ... + 1369934.

It is an arithmetic number, because the mean of its divisors is an integer number (9446330670).

Almost surely, 2^72973716479 is an apocalyptic number.

72973716479 is a deficient number, since it is larger than the sum of its proper divisors (2596928881).

72973716479 is a wasteful number, since it uses less digits than its factorization.

72973716479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2686489.

The product of its digits is 28005264, while the sum is 62.

The spelling of 72973716479 in words is "seventy-two billion, nine hundred seventy-three million, seven hundred sixteen thousand, four hundred seventy-nine".