68395882989 has 64 divisors (see below), whose sum is σ = 110250491904. Its totient is φ = 36871133376.

The previous prime is 68395882981. The next prime is 68395882999. The reversal of 68395882989 is 98928859386.

It is not a de Polignac number, because 68395882989 - 2³ = 68395882981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68395882989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68395882981) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 33152572 + ... + 33154634.

It is an arithmetic number, because the mean of its divisors is an integer number (1722663936).

Almost surely, 2^68395882989 is an apocalyptic number.

68395882989 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

68395882989 is a deficient number, since it is larger than the sum of its proper divisors (41854608915).

68395882989 is a wasteful number, since it uses less digits than its factorization.

68395882989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3006.

The product of its digits is 537477120, while the sum is 75.

The spelling of 68395882989 in words is "sixty-eight billion, three hundred ninety-five million, eight hundred eighty-two thousand, nine hundred eighty-nine".