18094496563 has 24 divisors (see below), whose sum is σ = 21394530000. Its totient is φ = 15170088960.

The previous prime is 18094496561. The next prime is 18094496617. The reversal of 18094496563 is 36569449081.

It is a happy number.

It is not a de Polignac number, because 18094496563 - 2¹ = 18094496561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18094496561) 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, 2317995 + ... + 2325787.

It is an arithmetic number, because the mean of its divisors is an integer number (891438750).

Almost surely, 2^18094496563 is an apocalyptic number.

18094496563 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

18094496563 is a deficient number, since it is larger than the sum of its proper divisors (3300033437).

18094496563 is a wasteful number, since it uses less digits than its factorization.

18094496563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9079 (or 9066 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 55.

The spelling of 18094496563 in words is "eighteen billion, ninety-four million, four hundred ninety-six thousand, five hundred sixty-three".