16968840678 has 24 divisors (see below), whose sum is σ = 37122775248. Its totient is φ = 5601364272.

The previous prime is 16968840631. The next prime is 16968840719. The reversal of 16968840678 is 87604886961.

16968840678 is a `hidden beast` number, since 169 + 68 + 8 + 406 + 7 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4574425 + ... + 4578132.

It is an arithmetic number, because the mean of its divisors is an integer number (1546782302).

Almost surely, 2^16968840678 is an apocalyptic number.

16968840678 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16968840678 is an abundant number, since it is smaller than the sum of its proper divisors (20153934570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16968840678 is a wasteful number, since it uses less digits than its factorization.

16968840678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9152668 (or 9152665 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 63.

The spelling of 16968840678 in words is "sixteen billion, nine hundred sixty-eight million, eight hundred forty thousand, six hundred seventy-eight".