18788000340 has 48 divisors (see below), whose sum is σ = 54893639808. Its totient is φ = 4792301184.

The previous prime is 18788000321. The next prime is 18788000353. The reversal of 18788000340 is 4300088781.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6805867 + ... + 6808626.

It is an arithmetic number, because the mean of its divisors is an integer number (1143617496).

Almost surely, 2^18788000340 is an apocalyptic number.

18788000340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18788000340 is an abundant number, since it is smaller than the sum of its proper divisors (36105639468).

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

18788000340 is a wasteful number, since it uses less digits than its factorization.

18788000340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13614528 (or 13614526 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The spelling of 18788000340 in words is "eighteen billion, seven hundred eighty-eight million, three hundred forty", and thus it is an aban number.