18782367680 has 28 divisors (see below), whose sum is σ = 44725513800. Its totient is φ = 7512946944.

The previous prime is 18782367677. The next prime is 18782367713. The reversal of 18782367680 is 8676328781.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29347130 + ... + 29347769.

Almost surely, 2^18782367680 is an apocalyptic number.

18782367680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18782367680 is an abundant number, since it is smaller than the sum of its proper divisors (25943146120).

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

18782367680 is an equidigital number, since it uses as much as digits as its factorization.

18782367680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58694916 (or 58694906 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 56.

The spelling of 18782367680 in words is "eighteen billion, seven hundred eighty-two million, three hundred sixty-seven thousand, six hundred eighty".