18642552314 has 16 divisors (see below), whose sum is σ = 28160657640. Its totient is φ = 9255801600.

The previous prime is 18642552263. The next prime is 18642552361. The reversal of 18642552314 is 41325524681.

It can be written as a sum of positive squares in 4 ways, for example, as 17743572025 + 898980289 = 133205^2 + 29983^2 .

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, 246614 + ... + 313214.

Almost surely, 2^18642552314 is an apocalyptic number.

18642552314 is a deficient number, since it is larger than the sum of its proper divisors (9518105326).

18642552314 is a wasteful number, since it uses less digits than its factorization.

18642552314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67585.

The product of its digits is 230400, while the sum is 41.

The spelling of 18642552314 in words is "eighteen billion, six hundred forty-two million, five hundred fifty-two thousand, three hundred fourteen".