18329863068 has 36 divisors (see below), whose sum is σ = 50545987128. Its totient is φ = 5554503840.

The previous prime is 18329863067. The next prime is 18329863193. The reversal of 18329863068 is 86036892381.

It is a happy number.

18329863068 is a `hidden beast` number, since 1 + 8 + 329 + 8 + 6 + 306 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18329863067) 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, 23143371 + ... + 23144162.

It is an arithmetic number, because the mean of its divisors is an integer number (1404055198).

Almost surely, 2^18329863068 is an apocalyptic number.

18329863068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18329863068 is an abundant number, since it is smaller than the sum of its proper divisors (32216124060).

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

18329863068 is a wasteful number, since it uses less digits than its factorization.

18329863068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46287554 (or 46287549 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 18329863068 in words is "eighteen billion, three hundred twenty-nine million, eight hundred sixty-three thousand, sixty-eight".