72776074736 has 20 divisors (see below), whose sum is σ = 141033421200. Its totient is φ = 36380353152.

The previous prime is 72776074643. The next prime is 72776074739. The reversal of 72776074736 is 63747067727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72776074739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401741 + ... + 554028.

It is an arithmetic number, because the mean of its divisors is an integer number (7051671060).

Almost surely, 2^72776074736 is an apocalyptic number.

It is an amenable number.

72776074736 is a deficient number, since it is larger than the sum of its proper divisors (68257346464).

72776074736 is a wasteful number, since it uses less digits than its factorization.

72776074736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960536 (or 960530 counting only the distinct ones).

The product of its (nonzero) digits is 14521248, while the sum is 56.

The spelling of 72776074736 in words is "seventy-two billion, seven hundred seventy-six million, seventy-four thousand, seven hundred thirty-six".