72837505404 has 72 divisors (see below), whose sum is σ = 193862199440. Its totient is φ = 22994813952.

The previous prime is 72837505387. The next prime is 72837505421. The reversal of 72837505404 is 40450573827.

72837505404 is a `hidden beast` number, since 7 + 28 + 37 + 50 + 540 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (72837505387) and next prime (72837505421).

It is a self number, because there is not a number n which added to its sum of digits gives 72837505404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2786604 + ... + 2812620.

Almost surely, 2^72837505404 is an apocalyptic number.

It is an amenable number.

72837505404 is an abundant number, since it is smaller than the sum of its proper divisors (121024694036).

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

72837505404 is a wasteful number, since it uses less digits than its factorization.

72837505404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30139 (or 30134 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 45.

The spelling of 72837505404 in words is "seventy-two billion, eight hundred thirty-seven million, five hundred five thousand, four hundred four".