78722580724 has 12 divisors (see below), whose sum is σ = 139424330304. Its totient is φ = 38887057784.

The previous prime is 78722580707. The next prime is 78722580751. The reversal of 78722580724 is 42708522787.

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, 118557772 + ... + 118558435.

It is an arithmetic number, because the mean of its divisors is an integer number (11618694192).

Almost surely, 2^78722580724 is an apocalyptic number.

It is an amenable number.

78722580724 is a deficient number, since it is larger than the sum of its proper divisors (60701749580).

78722580724 is a wasteful number, since it uses less digits than its factorization.

78722580724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237116294 (or 237116292 counting only the distinct ones).

The product of its (nonzero) digits is 3512320, while the sum is 52.

The spelling of 78722580724 in words is "seventy-eight billion, seven hundred twenty-two million, five hundred eighty thousand, seven hundred twenty-four".