72776099875 has 32 divisors (see below), whose sum is σ = 95039073792. Its totient is φ = 55570752000.

The previous prime is 72776099873. The next prime is 72776099881. The reversal of 72776099875 is 57899067727.

It is a happy number.

It is not a de Polignac number, because 72776099875 - 2¹ = 72776099873 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 72776099875.

It is not an unprimeable number, because it can be changed into a prime (72776099873) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154239 + ... + 411511.

It is an arithmetic number, because the mean of its divisors is an integer number (2969971056).

Almost surely, 2^72776099875 is an apocalyptic number.

72776099875 is a deficient number, since it is larger than the sum of its proper divisors (22262973917).

72776099875 is a wasteful number, since it uses less digits than its factorization.

72776099875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257392 (or 257382 counting only the distinct ones).

The product of its (nonzero) digits is 93350880, while the sum is 67.

The spelling of 72776099875 in words is "seventy-two billion, seven hundred seventy-six million, ninety-nine thousand, eight hundred seventy-five".