18709339627 has 16 divisors (see below), whose sum is σ = 21358713600. Its totient is φ = 16222298400.

The previous prime is 18709339619. The next prime is 18709339631. The reversal of 18709339627 is 72693390781.

It is a happy number.

It is not a de Polignac number, because 18709339627 - 2³ = 18709339619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18709339667) 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, 17649 + ... + 194242.

It is an arithmetic number, because the mean of its divisors is an integer number (1334919600).

Almost surely, 2^18709339627 is an apocalyptic number.

18709339627 is a deficient number, since it is larger than the sum of its proper divisors (2649373973).

18709339627 is a wasteful number, since it uses less digits than its factorization.

18709339627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212274.

The product of its (nonzero) digits is 3429216, while the sum is 55.

The spelling of 18709339627 in words is "eighteen billion, seven hundred nine million, three hundred thirty-nine thousand, six hundred twenty-seven".