72420658704 has 60 divisors (see below), whose sum is σ = 213344492400. Its totient is φ = 22869680832.

The previous prime is 72420658703. The next prime is 72420658727. The reversal of 72420658704 is 40785602427.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 72420658704.

It is not an unprimeable number, because it can be changed into a prime (72420658703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13232034 + ... + 13237505.

It is an arithmetic number, because the mean of its divisors is an integer number (3555741540).

Almost surely, 2^72420658704 is an apocalyptic number.

It is an amenable number.

72420658704 is an abundant number, since it is smaller than the sum of its proper divisors (140923833696).

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

72420658704 is a wasteful number, since it uses less digits than its factorization.

72420658704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26469572 (or 26469563 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 45.

The spelling of 72420658704 in words is "seventy-two billion, four hundred twenty million, six hundred fifty-eight thousand, seven hundred four".