68838900185 has 16 divisors (see below), whose sum is σ = 90199360512. Its totient is φ = 50018553600.

The previous prime is 68838900107. The next prime is 68838900257. The reversal of 68838900185 is 58100983886.

It is not a de Polignac number, because 68838900185 - 2¹² = 68838896089 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 68838900185.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 515936 + ... + 635505.

It is an arithmetic number, because the mean of its divisors is an integer number (5637460032).

Almost surely, 2^68838900185 is an apocalyptic number.

It is an amenable number.

68838900185 is a deficient number, since it is larger than the sum of its proper divisors (21360460327).

68838900185 is a wasteful number, since it uses less digits than its factorization.

68838900185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152544.

The product of its (nonzero) digits is 3317760, while the sum is 56.

The spelling of 68838900185 in words is "sixty-eight billion, eight hundred thirty-eight million, nine hundred thousand, one hundred eighty-five".