68940175899 has 16 divisors (see below), whose sum is σ = 106091815680. Its totient is φ = 39004341600.

The previous prime is 68940175879. The next prime is 68940175943. The reversal of 68940175899 is 99857104986.

It is not a de Polignac number, because 68940175899 - 2⁷ = 68940175771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68940175879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16249689 + ... + 16253930.

It is an arithmetic number, because the mean of its divisors is an integer number (6630738480).

Almost surely, 2^68940175899 is an apocalyptic number.

68940175899 is a deficient number, since it is larger than the sum of its proper divisors (37151639781).

68940175899 is a wasteful number, since it uses less digits than its factorization.

68940175899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32503730.

The product of its (nonzero) digits is 39191040, while the sum is 66.

The spelling of 68940175899 in words is "sixty-eight billion, nine hundred forty million, one hundred seventy-five thousand, eight hundred ninety-nine".