18606995427 has 16 divisors (see below), whose sum is σ = 24865118208. Its totient is φ = 12376802880.

The previous prime is 18606995419. The next prime is 18606995443. The reversal of 18606995427 is 72459960681.

It is not a de Polignac number, because 18606995427 - 2³ = 18606995419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18606995417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2748727 + ... + 2755487.

It is an arithmetic number, because the mean of its divisors is an integer number (1554069888).

Almost surely, 2^18606995427 is an apocalyptic number.

18606995427 is a deficient number, since it is larger than the sum of its proper divisors (6258122781).

18606995427 is a wasteful number, since it uses less digits than its factorization.

18606995427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8690.

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 18606995427 in words is "eighteen billion, six hundred six million, nine hundred ninety-five thousand, four hundred twenty-seven".