72208093724 has 12 divisors (see below), whose sum is σ = 136084484424. Its totient is φ = 33326812464.

The previous prime is 72208093717. The next prime is 72208093799. The reversal of 72208093724 is 42739080227.

It is a happy number.

It is a congruent number.

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, 694308542 + ... + 694308645.

It is an arithmetic number, because the mean of its divisors is an integer number (11340373702).

Almost surely, 2^72208093724 is an apocalyptic number.

It is an amenable number.

72208093724 is a deficient number, since it is larger than the sum of its proper divisors (63876390700).

72208093724 is a wasteful number, since it uses less digits than its factorization.

72208093724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388617204 (or 1388617202 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 44.

The spelling of 72208093724 in words is "seventy-two billion, two hundred eight million, ninety-three thousand, seven hundred twenty-four".