18585572027 has 16 divisors (see below), whose sum is σ = 21166168320. Its totient is φ = 16154133600.

The previous prime is 18585572023. The next prime is 18585572039. The reversal of 18585572027 is 72027558581.

It is a happy number.

It is not a de Polignac number, because 18585572027 - 2² = 18585572023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18585572023) 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, 594749 + ... + 625217.

It is an arithmetic number, because the mean of its divisors is an integer number (1322885520).

Almost surely, 2^18585572027 is an apocalyptic number.

18585572027 is a deficient number, since it is larger than the sum of its proper divisors (2580596293).

18585572027 is a wasteful number, since it uses less digits than its factorization.

18585572027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32914.

The product of its (nonzero) digits is 1568000, while the sum is 50.

The spelling of 18585572027 in words is "eighteen billion, five hundred eighty-five million, five hundred seventy-two thousand, twenty-seven".