18104340688 has 40 divisors (see below), whose sum is σ = 40767658560. Its totient is φ = 7627491840.

The previous prime is 18104340673. The next prime is 18104340713. The reversal of 18104340688 is 88604340181.

It is a congruent number.

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, 1363273 + ... + 1376488.

It is an arithmetic number, because the mean of its divisors is an integer number (1019191464).

Almost surely, 2^18104340688 is an apocalyptic number.

It is an amenable number.

18104340688 is an abundant number, since it is smaller than the sum of its proper divisors (22663317872).

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

18104340688 is a wasteful number, since it uses less digits than its factorization.

18104340688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2739835 (or 2739829 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 43.

The spelling of 18104340688 in words is "eighteen billion, one hundred four million, three hundred forty thousand, six hundred eighty-eight".