68359989394 has 16 divisors (see below), whose sum is σ = 104115623040. Its totient is φ = 33658629840.

The previous prime is 68359989353. The next prime is 68359989407. The reversal of 68359989394 is 49398995386.

68359989394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 926362 + ... + 997429.

It is an arithmetic number, because the mean of its divisors is an integer number (6507226440).

Almost surely, 2^68359989394 is an apocalyptic number.

68359989394 is a deficient number, since it is larger than the sum of its proper divisors (35755633646).

68359989394 is a wasteful number, since it uses less digits than its factorization.

68359989394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924065.

The product of its digits is 453496320, while the sum is 73.

The spelling of 68359989394 in words is "sixty-eight billion, three hundred fifty-nine million, nine hundred eighty-nine thousand, three hundred ninety-four".