18737316836480 has 128 divisors (see below), whose sum is σ = 49349894967360. Its totient is φ = 6746108416000.

The previous prime is 18737316836477. The next prime is 18737316836531. The reversal of 18737316836480 is 8463861373781.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12464954 + ... + 13887033.

Almost surely, 2^{18737316836480} is an apocalyptic number.

18737316836480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18737316836480 is an abundant number, since it is smaller than the sum of its proper divisors (30612578130880).

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

18737316836480 is a wasteful number, since it uses less digits than its factorization.

18737316836480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26352118 (or 26352106 counting only the distinct ones).

The product of its (nonzero) digits is 97542144, while the sum is 65.

The spelling of 18737316836480 in words is "eighteen trillion, seven hundred thirty-seven billion, three hundred sixteen million, eight hundred thirty-six thousand, four hundred eighty".