72977796919915 has 8 divisors (see below), whose sum is σ = 89609945985648. Its totient is φ = 57024511081440.

The previous prime is 72977796919883. The next prime is 72977796919921. The reversal of 72977796919915 is 51991969777927.

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

It is not a de Polignac number, because 72977796919915 - 2⁵ = 72977796919883 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169715806576 + ... + 169715807005.

It is an arithmetic number, because the mean of its divisors is an integer number (11201243248206).

Almost surely, 2^{72977796919915} is an apocalyptic number.

72977796919915 is a deficient number, since it is larger than the sum of its proper divisors (16632149065733).

72977796919915 is a wasteful number, since it uses less digits than its factorization.

72977796919915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339431613629.

The product of its digits is 8506598940, while the sum is 88.

The spelling of 72977796919915 in words is "seventy-two trillion, nine hundred seventy-seven billion, seven hundred ninety-six million, nine hundred nineteen thousand, nine hundred fifteen".