18614279888 has 20 divisors (see below), whose sum is σ = 36082662660. Its totient is φ = 9302625024.

The previous prime is 18614279881. The next prime is 18614279903. The reversal of 18614279888 is 88897241681.

It can be written as a sum of positive squares in 2 ways, for example, as 12154621504 + 6459658384 = 110248^2 + 80372^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18614279888.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18614279881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248045 + ... + 314252.

It is an arithmetic number, because the mean of its divisors is an integer number (1804133133).

Almost surely, 2^18614279888 is an apocalyptic number.

It is an amenable number.

18614279888 is a deficient number, since it is larger than the sum of its proper divisors (17468382772).

18614279888 is a wasteful number, since it uses less digits than its factorization.

18614279888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564374 (or 564368 counting only the distinct ones).

The product of its digits is 12386304, while the sum is 62.

The spelling of 18614279888 in words is "eighteen billion, six hundred fourteen million, two hundred seventy-nine thousand, eight hundred eighty-eight".