18813654152 has 16 divisors (see below), whose sum is σ = 35289902940. Its totient is φ = 9403013376.

The previous prime is 18813654131. The next prime is 18813654161. The reversal of 18813654152 is 25145631881.

It can be written as a sum of positive squares in 2 ways, for example, as 18644810116 + 168844036 = 136546^2 + 12994^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 455693 + ... + 495260.

Almost surely, 2^18813654152 is an apocalyptic number.

It is an amenable number.

18813654152 is a deficient number, since it is larger than the sum of its proper divisors (16476248788).

18813654152 is a wasteful number, since it uses less digits than its factorization.

18813654152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953432 (or 953428 counting only the distinct ones).

The product of its digits is 230400, while the sum is 44.

The spelling of 18813654152 in words is "eighteen billion, eight hundred thirteen million, six hundred fifty-four thousand, one hundred fifty-two".