18395069328 has 40 divisors (see below), whose sum is σ = 52800663200. Its totient is φ = 6131689632.

The previous prime is 18395069321. The next prime is 18395069333. The reversal of 18395069328 is 82396059381.

18395069328 is a `hidden beast` number, since 18 + 39 + 506 + 93 + 2 + 8 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (18395069321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21290158 + ... + 21291021.

It is an arithmetic number, because the mean of its divisors is an integer number (1320016580).

Almost surely, 2^18395069328 is an apocalyptic number.

18395069328 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18395069328 is an abundant number, since it is smaller than the sum of its proper divisors (34405593872).

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

18395069328 is a wasteful number, since it uses less digits than its factorization.

18395069328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42581196 (or 42581184 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 18395069328 in words is "eighteen billion, three hundred ninety-five million, sixty-nine thousand, three hundred twenty-eight".