68215734183 has 4 divisors (see below), whose sum is σ = 90954312248. Its totient is φ = 45477156120.

The previous prime is 68215734163. The next prime is 68215734187. The reversal of 68215734183 is 38143751286.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 68215734183 - 2²¹ = 68213637031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68215734187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11369289028 + ... + 11369289033.

It is an arithmetic number, because the mean of its divisors is an integer number (22738578062).

Almost surely, 2^68215734183 is an apocalyptic number.

68215734183 is a deficient number, since it is larger than the sum of its proper divisors (22738578065).

68215734183 is a wasteful number, since it uses less digits than its factorization.

68215734183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22738578064.

The product of its digits is 967680, while the sum is 48.

The spelling of 68215734183 in words is "sixty-eight billion, two hundred fifteen million, seven hundred thirty-four thousand, one hundred eighty-three".