72769327056 has 60 divisors (see below), whose sum is σ = 205752602692. Its totient is φ = 24006371328.

The previous prime is 72769327051. The next prime is 72769327091. The reversal of 72769327056 is 65072396727.

It can be written as a sum of positive squares in 2 ways, for example, as 57640327056 + 15129000000 = 240084^2 + 123000^2 .

It is a junction number, because it is equal to n+sod(n) for n = 72769326993 and 72769327011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72769327051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2590891 + ... + 2618826.

Almost surely, 2^72769327056 is an apocalyptic number.

It is an amenable number.

72769327056 is an abundant number, since it is smaller than the sum of its proper divisors (132983275636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72769327056 is a wasteful number, since it uses less digits than its factorization.

72769327056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5209828 (or 5209819 counting only the distinct ones).

The product of its (nonzero) digits is 6667920, while the sum is 54.

The spelling of 72769327056 in words is "seventy-two billion, seven hundred sixty-nine million, three hundred twenty-seven thousand, fifty-six".