72377523502640 has 40 divisors (see below), whose sum is σ = 168999964256448. Its totient is φ = 28826756134400.

The previous prime is 72377523502639. The next prime is 72377523502673. The reversal of 72377523502640 is 4620532577327.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1941438536 + ... + 1941475815.

Almost surely, 2^{72377523502640} is an apocalyptic number.

It is an amenable number.

72377523502640 is an abundant number, since it is smaller than the sum of its proper divisors (96622440753808).

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

72377523502640 is a wasteful number, since it uses less digits than its factorization.

72377523502640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3882914597 (or 3882914591 counting only the distinct ones).

The product of its (nonzero) digits is 14817600, while the sum is 53.

The spelling of 72377523502640 in words is "seventy-two trillion, three hundred seventy-seven billion, five hundred twenty-three million, five hundred two thousand, six hundred forty".