18614718873 has 12 divisors (see below), whose sum is σ = 26897946660. Its totient is φ = 12405188256.

The previous prime is 18614718839. The next prime is 18614718917. The reversal of 18614718873 is 37881741681.

18614718873 is a `hidden beast` number, since 1 + 8 + 614 + 7 + 18 + 8 + 7 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9499816089 + 9114902784 = 97467^2 + 95472^2 .

It is not a de Polignac number, because 18614718873 - 2²⁰ = 18613670297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18614718173) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 359778 + ... + 408251.

It is an arithmetic number, because the mean of its divisors is an integer number (2241495555).

Almost surely, 2^18614718873 is an apocalyptic number.

It is an amenable number.

18614718873 is a deficient number, since it is larger than the sum of its proper divisors (8283227787).

18614718873 is a wasteful number, since it uses less digits than its factorization.

18614718873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770728 (or 770725 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 54.

The spelling of 18614718873 in words is "eighteen billion, six hundred fourteen million, seven hundred eighteen thousand, eight hundred seventy-three".