68299669984 has 72 divisors (see below), whose sum is σ = 168450678648. Its totient is φ = 27019641600.

The previous prime is 68299669961. The next prime is 68299670059. The reversal of 68299669984 is 48996699286.

It is a self number, because there is not a number n which added to its sum of digits gives 68299669984.

It is a congruent number.

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, 1654942 + ... + 1695709.

It is an arithmetic number, because the mean of its divisors is an integer number (2339592759).

Almost surely, 2^68299669984 is an apocalyptic number.

It is an amenable number.

68299669984 is an abundant number, since it is smaller than the sum of its proper divisors (100151008664).

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

68299669984 is a wasteful number, since it uses less digits than its factorization.

68299669984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3350688 (or 3350673 counting only the distinct ones).

The product of its digits is 725594112, while the sum is 76.

The spelling of 68299669984 in words is "sixty-eight billion, two hundred ninety-nine million, six hundred sixty-nine thousand, nine hundred eighty-four".