18840464646740 has 48 divisors (see below), whose sum is σ = 45433464995520. Its totient is φ = 6490494996480.

The previous prime is 18840464646737. The next prime is 18840464646799. The reversal of 18840464646740 is 4764646404881.

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 15 ways as a sum of consecutive naturals, for example, 2253639917 + ... + 2253648276.

It is an arithmetic number, because the mean of its divisors is an integer number (946530520740).

Almost surely, 2^{18840464646740} is an apocalyptic number.

18840464646740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18840464646740 is an abundant number, since it is smaller than the sum of its proper divisors (26593000348780).

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

18840464646740 is a wasteful number, since it uses less digits than its factorization.

18840464646740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4507288232 (or 4507288230 counting only the distinct ones).

The product of its (nonzero) digits is 99090432, while the sum is 62.

The spelling of 18840464646740 in words is "eighteen trillion, eight hundred forty billion, four hundred sixty-four million, six hundred forty-six thousand, seven hundred forty".