716578735816 has 8 divisors (see below), whose sum is σ = 1343585129670. Its totient is φ = 358289367904.

The previous prime is 716578735799. The next prime is 716578735837. The reversal of 716578735816 is 618537875617.

It can be written as a sum of positive squares in only one way, i.e., 714285283716 + 2293452100 = 845154^2 + 47890^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (64) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44786170981 + ... + 44786170996.

Almost surely, 2^716578735816 is an apocalyptic number.

It is an amenable number.

716578735816 is a deficient number, since it is larger than the sum of its proper divisors (627006393854).

716578735816 is a wasteful number, since it uses less digits than its factorization.

716578735816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89572341983 (or 89572341979 counting only the distinct ones).

The product of its digits is 59270400, while the sum is 64.

The spelling of 716578735816 in words is "seven hundred sixteen billion, five hundred seventy-eight million, seven hundred thirty-five thousand, eight hundred sixteen".