78728759600 has 60 divisors (see below), whose sum is σ = 190913666904. Its totient is φ = 31197173760.

The previous prime is 78728759587. The next prime is 78728759633. The reversal of 78728759600 is 695782787.

It is a self number, because there is not a number n which added to its sum of digits gives 78728759600.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 876929 + ... + 962528.

Almost surely, 2^78728759600 is an apocalyptic number.

It is an amenable number.

78728759600 is an abundant number, since it is smaller than the sum of its proper divisors (112184907304).

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

78728759600 is a wasteful number, since it uses less digits than its factorization.

78728759600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839582 (or 1839571 counting only the distinct ones).

The product of its (nonzero) digits is 11854080, while the sum is 59.

The spelling of 78728759600 in words is "seventy-eight billion, seven hundred twenty-eight million, seven hundred fifty-nine thousand, six hundred".