18880401627 has 6 divisors (see below), whose sum is σ = 27271691252. Its totient is φ = 12586934412.

The previous prime is 18880401623. The next prime is 18880401649. The reversal of 18880401627 is 72610408881.

18880401627 is a `hidden beast` number, since 18 + 8 + 8 + 0 + 4 + 0 + 1 + 627 = 666.

It is not a de Polignac number, because 18880401627 - 2² = 18880401623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18880401623) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1048911193 + ... + 1048911210.

Almost surely, 2^18880401627 is an apocalyptic number.

18880401627 is a deficient number, since it is larger than the sum of its proper divisors (8391289625).

18880401627 is a wasteful number, since it uses less digits than its factorization.

18880401627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097822409 (or 2097822406 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 45.

The spelling of 18880401627 in words is "eighteen billion, eight hundred eighty million, four hundred one thousand, six hundred twenty-seven".