72706248616 has 16 divisors (see below), whose sum is σ = 143499175200. Its totient is φ = 34439801904.

The previous prime is 72706248607. The next prime is 72706248631. The reversal of 72706248616 is 61684260727.

It is a self number, because there is not a number n which added to its sum of digits gives 72706248616.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239165140 + ... + 239165443.

It is an arithmetic number, because the mean of its divisors is an integer number (8968698450).

Almost surely, 2^72706248616 is an apocalyptic number.

72706248616 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

72706248616 is a deficient number, since it is larger than the sum of its proper divisors (70792926584).

72706248616 is a wasteful number, since it uses less digits than its factorization.

72706248616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478330608 (or 478330604 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 49.

The spelling of 72706248616 in words is "seventy-two billion, seven hundred six million, two hundred forty-eight thousand, six hundred sixteen".