789685081664 has 14 divisors (see below), whose sum is σ = 1567031334054. Its totient is φ = 394842540800.

The previous prime is 789685081651. The next prime is 789685081729. The reversal of 789685081664 is 466180586987.

789685081664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 789681049600 + 4032064 = 888640^2 + 2008^2 .

It is a junction number, because it is equal to n+sod(n) for n = 789685081594 and 789685081603.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6169414637 + ... + 6169414764.

Almost surely, 2^789685081664 is an apocalyptic number.

It is an amenable number.

789685081664 is a deficient number, since it is larger than the sum of its proper divisors (777346252390).

789685081664 is a wasteful number, since it uses less digits than its factorization.

789685081664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12338829413 (or 12338829403 counting only the distinct ones).

The product of its (nonzero) digits is 139345920, while the sum is 68.

The spelling of 789685081664 in words is "seven hundred eighty-nine billion, six hundred eighty-five million, eighty-one thousand, six hundred sixty-four".