72604583964 has 108 divisors (see below), whose sum is σ = 202009914288. Its totient is φ = 21970798080.

The previous prime is 72604583923. The next prime is 72604584023. The reversal of 72604583964 is 46938540627.

72604583964 is a `hidden beast` number, since 72 + 60 + 458 + 3 + 9 + 64 = 666.

It is a super-2 number, since 2×72604583964² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72604583964.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3225292 + ... + 3247724.

Almost surely, 2^72604583964 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72604583964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101004957144).

72604583964 is an abundant number, since it is smaller than the sum of its proper divisors (129405330324).

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

72604583964 is a wasteful number, since it uses less digits than its factorization.

72604583964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23208 (or 23192 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 72604583964 in words is "seventy-two billion, six hundred four million, five hundred eighty-three thousand, nine hundred sixty-four".