18895054463 has 4 divisors (see below), whose sum is σ = 18895380720. Its totient is φ = 18894728208.

The previous prime is 18895054411. The next prime is 18895054597. The reversal of 18895054463 is 36445059881.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36445059881 = 83 ⋅439097107.

It is a cyclic number.

It is not a de Polignac number, because 18895054463 - 2²⁴ = 18878277247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18895054403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50195 + ... + 200772.

It is an arithmetic number, because the mean of its divisors is an integer number (4723845180).

Almost surely, 2^18895054463 is an apocalyptic number.

18895054463 is a deficient number, since it is larger than the sum of its proper divisors (326257).

18895054463 is an equidigital number, since it uses as much as digits as its factorization.

18895054463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326256.

The product of its (nonzero) digits is 4147200, while the sum is 53.

The spelling of 18895054463 in words is "eighteen billion, eight hundred ninety-five million, fifty-four thousand, four hundred sixty-three".