18642000740 has 24 divisors (see below), whose sum is σ = 42707129472. Its totient is φ = 6778909280.

The previous prime is 18642000703. The next prime is 18642000791. The reversal of 18642000740 is 4700024681.

It is a junction number, because it is equal to n+sod(n) for n = 18642000697 and 18642000706.

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 7 ways as a sum of consecutive naturals, for example, 42367964 + ... + 42368403.

It is an arithmetic number, because the mean of its divisors is an integer number (1779463728).

Almost surely, 2^18642000740 is an apocalyptic number.

18642000740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18642000740 is an abundant number, since it is smaller than the sum of its proper divisors (24065128732).

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

18642000740 is a wasteful number, since it uses less digits than its factorization.

18642000740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84736387 (or 84736385 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The spelling of 18642000740 in words is "eighteen billion, six hundred forty-two million, seven hundred forty", and thus it is an aban number.