72305860540 has 48 divisors (see below), whose sum is σ = 155096726400. Its totient is φ = 28306778432.

The previous prime is 72305860519. The next prime is 72305860553. The reversal of 72305860540 is 4506850327.

It is a junction number, because it is equal to n+sod(n) for n = 72305860493 and 72305860502.

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, 132891 + ... + 402829.

It is an arithmetic number, because the mean of its divisors is an integer number (3231181800).

Almost surely, 2^72305860540 is an apocalyptic number.

It is an amenable number.

72305860540 is an abundant number, since it is smaller than the sum of its proper divisors (82790865860).

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

72305860540 is a wasteful number, since it uses less digits than its factorization.

72305860540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270234 (or 270232 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 72305860540 in words is "seventy-two billion, three hundred five million, eight hundred sixty thousand, five hundred forty".