18895054465 has 8 divisors (see below), whose sum is σ = 25913217600. Its totient is φ = 12956608752.

The previous prime is 18895054411. The next prime is 18895054597. The reversal of 18895054465 is 56445059881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18895054465 - 2²³ = 18886665857 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269929315 + ... + 269929384.

It is an arithmetic number, because the mean of its divisors is an integer number (3239152200).

Almost surely, 2^18895054465 is an apocalyptic number.

It is an amenable number.

18895054465 is a deficient number, since it is larger than the sum of its proper divisors (7018163135).

18895054465 is an equidigital number, since it uses as much as digits as its factorization.

18895054465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539858711.

The product of its (nonzero) digits is 6912000, while the sum is 55.

The spelling of 18895054465 in words is "eighteen billion, eight hundred ninety-five million, fifty-four thousand, four hundred sixty-five".