18344274988 has 24 divisors (see below), whose sum is σ = 35224208208. Its totient is φ = 8306840256.

The previous prime is 18344274973. The next prime is 18344275007. The reversal of 18344274988 is 88947244381.

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, 3325306 + ... + 3330817.

It is an arithmetic number, because the mean of its divisors is an integer number (1467675342).

Almost surely, 2^18344274988 is an apocalyptic number.

It is an amenable number.

18344274988 is a deficient number, since it is larger than the sum of its proper divisors (16879933220).

18344274988 is a wasteful number, since it uses less digits than its factorization.

18344274988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6656193 (or 6656191 counting only the distinct ones).

The product of its digits is 12386304, while the sum is 58.

The spelling of 18344274988 in words is "eighteen billion, three hundred forty-four million, two hundred seventy-four thousand, nine hundred eighty-eight".