18734584375840 has 48 divisors (see below), whose sum is σ = 44578876184640. Its totient is φ = 7439921268480.

The previous prime is 18734584375757. The next prime is 18734584375861. The reversal of 18734584375840 is 4857348543781.

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, 421168956 + ... + 421213435.

It is an arithmetic number, because the mean of its divisors is an integer number (928726587180).

Almost surely, 2^{18734584375840} is an apocalyptic number.

18734584375840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18734584375840 is an abundant number, since it is smaller than the sum of its proper divisors (25844291808800).

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

18734584375840 is a wasteful number, since it uses less digits than its factorization.

18734584375840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842382545 (or 842382537 counting only the distinct ones).

The product of its (nonzero) digits is 361267200, while the sum is 67.

The spelling of 18734584375840 in words is "eighteen trillion, seven hundred thirty-four billion, five hundred eighty-four million, three hundred seventy-five thousand, eight hundred forty".