68818813195 has 16 divisors (see below), whose sum is σ = 90098376192. Its totient is φ = 50045438560.

The previous prime is 68818813187. The next prime is 68818813223. The reversal of 68818813195 is 59131881886.

It is not a de Polignac number, because 68818813195 - 2³ = 68818813187 is a prime.

It is a super-2 number, since 2×68818813195² (a number of 22 digits) contains 22 as substring.

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, 616344 + ... + 719386.

It is an arithmetic number, because the mean of its divisors is an integer number (5631148512).

Almost surely, 2^68818813195 is an apocalyptic number.

68818813195 is a deficient number, since it is larger than the sum of its proper divisors (21279562997).

68818813195 is a wasteful number, since it uses less digits than its factorization.

68818813195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115202.

The product of its digits is 3317760, while the sum is 58.

The spelling of 68818813195 in words is "sixty-eight billion, eight hundred eighteen million, eight hundred thirteen thousand, one hundred ninety-five".