72810761700136 has 16 divisors (see below), whose sum is σ = 140209912733940. Its totient is φ = 35421451637760.

The previous prime is 72810761700133. The next prime is 72810761700143. The reversal of 72810761700136 is 63100716701827.

It can be written as a sum of positive squares in 2 ways, for example, as 59183633748100 + 13627127952036 = 7693090^2 + 3691494^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 72810761700136.

It is not an unprimeable number, because it can be changed into a prime (72810761700133) 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, 122991151225 + ... + 122991151816.

Almost surely, 2^{72810761700136} is an apocalyptic number.

It is an amenable number.

72810761700136 is a deficient number, since it is larger than the sum of its proper divisors (67399151033804).

72810761700136 is a wasteful number, since it uses less digits than its factorization.

72810761700136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245982303084 (or 245982303080 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 49.

The spelling of 72810761700136 in words is "seventy-two trillion, eight hundred ten billion, seven hundred sixty-one million, seven hundred thousand, one hundred thirty-six".