18743082840 has 96 divisors (see below), whose sum is σ = 61255537200. Its totient is φ = 4970215680.

The previous prime is 18743082793. The next prime is 18743082857. The reversal of 18743082840 is 4828034781.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80991 + ... + 209870.

Almost surely, 2^18743082840 is an apocalyptic number.

18743082840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18743082840 is an abundant number, since it is smaller than the sum of its proper divisors (42512454360).

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

18743082840 is a wasteful number, since it uses less digits than its factorization.

18743082840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291057 (or 291050 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 45.

The spelling of 18743082840 in words is "eighteen billion, seven hundred forty-three million, eighty-two thousand, eight hundred forty".