68844923187 has 8 divisors (see below), whose sum is σ = 91893995520. Its totient is φ = 45846233160.

The previous prime is 68844923177. The next prime is 68844923243. The reversal of 68844923187 is 78132944886.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68844923187 - 2¹¹ = 68844921139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68844923187.

It is not an unprimeable number, because it can be changed into a prime (68844923107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12592387 + ... + 12597852.

It is an arithmetic number, because the mean of its divisors is an integer number (11486749440).

Almost surely, 2^68844923187 is an apocalyptic number.

68844923187 is a deficient number, since it is larger than the sum of its proper divisors (23049072333).

68844923187 is a wasteful number, since it uses less digits than its factorization.

68844923187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25191153.

The product of its digits is 18579456, while the sum is 60.

The spelling of 68844923187 in words is "sixty-eight billion, eight hundred forty-four million, nine hundred twenty-three thousand, one hundred eighty-seven".