18968814707 has 16 divisors (see below), whose sum is σ = 19259100960. Its totient is φ = 18681062400.

The previous prime is 18968814649. The next prime is 18968814731. The reversal of 18968814707 is 70741886981.

It is a cyclic number.

It is not a de Polignac number, because 18968814707 - 2⁶ = 18968814643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18968814757) 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, 16198232 + ... + 16199402.

It is an arithmetic number, because the mean of its divisors is an integer number (1203693810).

Almost surely, 2^18968814707 is an apocalyptic number.

18968814707 is a deficient number, since it is larger than the sum of its proper divisors (290286253).

18968814707 is a wasteful number, since it uses less digits than its factorization.

18968814707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2054.

The product of its (nonzero) digits is 5419008, while the sum is 59.

The spelling of 18968814707 in words is "eighteen billion, nine hundred sixty-eight million, eight hundred fourteen thousand, seven hundred seven".