68909559094 has 16 divisors (see below), whose sum is σ = 104920131888. Its totient is φ = 33936309792.

The previous prime is 68909559079. The next prime is 68909559113. The reversal of 68909559094 is 49095590986.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1237312 + ... + 1291804.

It is an arithmetic number, because the mean of its divisors is an integer number (6557508243).

Almost surely, 2^68909559094 is an apocalyptic number.

68909559094 is a deficient number, since it is larger than the sum of its proper divisors (36010572794).

68909559094 is a wasteful number, since it uses less digits than its factorization.

68909559094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63999.

The product of its (nonzero) digits is 31492800, while the sum is 64.

The spelling of 68909559094 in words is "sixty-eight billion, nine hundred nine million, five hundred fifty-nine thousand, ninety-four".