68837390894 has 4 divisors (see below), whose sum is σ = 103256086344. Its totient is φ = 34418695446.

The previous prime is 68837390833. The next prime is 68837390899. The reversal of 68837390894 is 49809373886.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 68837390894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68837390899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17209347722 + ... + 17209347725.

It is an arithmetic number, because the mean of its divisors is an integer number (25814021586).

Almost surely, 2^68837390894 is an apocalyptic number.

68837390894 is a deficient number, since it is larger than the sum of its proper divisors (34418695450).

68837390894 is a wasteful number, since it uses less digits than its factorization.

68837390894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34418695449.

The product of its (nonzero) digits is 62705664, while the sum is 65.

The spelling of 68837390894 in words is "sixty-eight billion, eight hundred thirty-seven million, three hundred ninety thousand, eight hundred ninety-four".