72763272144440 has 64 divisors (see below), whose sum is σ = 169399990552320. Its totient is φ = 28099524096000.

The previous prime is 72763272144397. The next prime is 72763272144443. The reversal of 72763272144440 is 4444127236727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72763272144443) 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, 69169241 + ... + 70213320.

It is an arithmetic number, because the mean of its divisors is an integer number (2646874852380).

Almost surely, 2^{72763272144440} is an apocalyptic number.

It is an amenable number.

72763272144440 is an abundant number, since it is smaller than the sum of its proper divisors (96636718407880).

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

72763272144440 is a wasteful number, since it uses less digits than its factorization.

72763272144440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139383024 (or 139383020 counting only the distinct ones).

The product of its (nonzero) digits is 12644352, while the sum is 53.

The spelling of 72763272144440 in words is "seventy-two trillion, seven hundred sixty-three billion, two hundred seventy-two million, one hundred forty-four thousand, four hundred forty".