68949802323 has 12 divisors (see below), whose sum is σ = 99604657048. Its totient is φ = 45961689600.

The previous prime is 68949802319. The next prime is 68949802357. The reversal of 68949802323 is 32320894986.

It is a happy number.

It is not a de Polignac number, because 68949802323 - 2² = 68949802319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68949802323.

It is not an unprimeable number, because it can be changed into a prime (68949802723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 312565 + ... + 485382.

Almost surely, 2^68949802323 is an apocalyptic number.

68949802323 is a deficient number, since it is larger than the sum of its proper divisors (30654854725).

68949802323 is a wasteful number, since it uses less digits than its factorization.

68949802323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807554 (or 807551 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 68949802323 in words is "sixty-eight billion, nine hundred forty-nine million, eight hundred two thousand, three hundred twenty-three".