18895064975 has 24 divisors (see below), whose sum is σ = 24198832128. Its totient is φ = 14620485600.

The previous prime is 18895064971. The next prime is 18895065019. The reversal of 18895064975 is 57946059881.

It is not a de Polignac number, because 18895064975 - 2² = 18895064971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18895064971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1704902 + ... + 1715948.

It is an arithmetic number, because the mean of its divisors is an integer number (1008284672).

Almost surely, 2^18895064975 is an apocalyptic number.

18895064975 is a deficient number, since it is larger than the sum of its proper divisors (5303767153).

18895064975 is a wasteful number, since it uses less digits than its factorization.

18895064975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13295 (or 13290 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 62.

The spelling of 18895064975 in words is "eighteen billion, eight hundred ninety-five million, sixty-four thousand, nine hundred seventy-five".