18227827732 has 24 divisors (see below), whose sum is σ = 32123556416. Its totient is φ = 9049771008.

The previous prime is 18227827721. The next prime is 18227827757. The reversal of 18227827732 is 23772872281.

It is a happy number.

It is a congruent number.

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, 739633 + ... + 763879.

Almost surely, 2^18227827732 is an apocalyptic number.

It is an amenable number.

18227827732 is a deficient number, since it is larger than the sum of its proper divisors (13895728684).

18227827732 is a wasteful number, since it uses less digits than its factorization.

18227827732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25567 (or 25565 counting only the distinct ones).

The product of its digits is 1053696, while the sum is 49.

The spelling of 18227827732 in words is "eighteen billion, two hundred twenty-seven million, eight hundred twenty-seven thousand, seven hundred thirty-two".