72917276375 has 16 divisors (see below), whose sum is σ = 91103493312. Its totient is φ = 58267967200.

The previous prime is 72917276371. The next prime is 72917276381. The reversal of 72917276375 is 57367271927.

It is a happy number.

It is not a de Polignac number, because 72917276375 - 2² = 72917276371 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72917276375.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72917276371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217952 + ... + 439701.

It is an arithmetic number, because the mean of its divisors is an integer number (5693968332).

Almost surely, 2^72917276375 is an apocalyptic number.

72917276375 is a deficient number, since it is larger than the sum of its proper divisors (18186216937).

72917276375 is an equidigital number, since it uses as much as digits as its factorization.

72917276375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658555 (or 658545 counting only the distinct ones).

The product of its digits is 7779240, while the sum is 56.

The spelling of 72917276375 in words is "seventy-two billion, nine hundred seventeen million, two hundred seventy-six thousand, three hundred seventy-five".