18669694248 has 48 divisors (see below), whose sum is σ = 51739665120. Its totient is φ = 6078504096.

The previous prime is 18669694243. The next prime is 18669694261. The reversal of 18669694248 is 84249696681.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (18669694243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3012036 + ... + 3018227.

It is an arithmetic number, because the mean of its divisors is an integer number (1077909690).

Almost surely, 2^18669694248 is an apocalyptic number.

18669694248 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18669694248 is an abundant number, since it is smaller than the sum of its proper divisors (33069970872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18669694248 is a wasteful number, since it uses less digits than its factorization.

18669694248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6030318 (or 6030311 counting only the distinct ones).

The product of its digits is 35831808, while the sum is 63.

The spelling of 18669694248 in words is "eighteen billion, six hundred sixty-nine million, six hundred ninety-four thousand, two hundred forty-eight".