18416960971 has 4 divisors (see below), whose sum is σ = 18435812472. Its totient is φ = 18398109472.

The previous prime is 18416960957. The next prime is 18416960977. The reversal of 18416960971 is 17906961481.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18416960971 - 2⁹ = 18416960459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18416960977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9424285 + ... + 9426238.

It is an arithmetic number, because the mean of its divisors is an integer number (4608953118).

Almost surely, 2^18416960971 is an apocalyptic number.

18416960971 is a deficient number, since it is larger than the sum of its proper divisors (18851501).

18416960971 is an equidigital number, since it uses as much as digits as its factorization.

18416960971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18851500.

The product of its (nonzero) digits is 653184, while the sum is 52.

The spelling of 18416960971 in words is "eighteen billion, four hundred sixteen million, nine hundred sixty thousand, nine hundred seventy-one".