72437522648 has 64 divisors (see below), whose sum is σ = 152939858400. Its totient is φ = 31961088000.

The previous prime is 72437522627. The next prime is 72437522681. The reversal of 72437522648 is 84622573427.

It is a junction number, because it is equal to n+sod(n) for n = 72437522596 and 72437522605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106148 + ... + 395148.

Almost surely, 2^72437522648 is an apocalyptic number.

It is an amenable number.

72437522648 is an abundant number, since it is smaller than the sum of its proper divisors (80502335752).

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

72437522648 is a wasteful number, since it uses less digits than its factorization.

72437522648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289140 (or 289136 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 50.

The spelling of 72437522648 in words is "seventy-two billion, four hundred thirty-seven million, five hundred twenty-two thousand, six hundred forty-eight".