68454680918 has 32 divisors (see below), whose sum is σ = 111805202880. Its totient is φ = 31245321600.

The previous prime is 68454680897. The next prime is 68454680927. The reversal of 68454680918 is 81908645486.

It is a congruent number.

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, 2314568 + ... + 2343956.

It is an arithmetic number, because the mean of its divisors is an integer number (3493912590).

Almost surely, 2^68454680918 is an apocalyptic number.

68454680918 is a deficient number, since it is larger than the sum of its proper divisors (43350521962).

68454680918 is a wasteful number, since it uses less digits than its factorization.

68454680918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30392.

The product of its (nonzero) digits is 13271040, while the sum is 59.

The spelling of 68454680918 in words is "sixty-eight billion, four hundred fifty-four million, six hundred eighty thousand, nine hundred eighteen".