68716137838 has 8 divisors (see below), whose sum is σ = 103114525032. Its totient is φ = 34344629496.

The previous prime is 68716137823. The next prime is 68716137943. The reversal of 68716137838 is 83873161786.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6713320 + ... + 6723547.

It is an arithmetic number, because the mean of its divisors is an integer number (12889315629).

Almost surely, 2^68716137838 is an apocalyptic number.

68716137838 is a deficient number, since it is larger than the sum of its proper divisors (34398387194).

68716137838 is a wasteful number, since it uses less digits than its factorization.

68716137838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13439426.

The product of its digits is 8128512, while the sum is 58.

The spelling of 68716137838 in words is "sixty-eight billion, seven hundred sixteen million, one hundred thirty-seven thousand, eight hundred thirty-eight".