19800378362364 has 48 divisors (see below), whose sum is σ = 47011503168000. Its totient is φ = 6484957756480.

The previous prime is 19800378362339. The next prime is 19800378362377. The reversal of 19800378362364 is 46326387300891.

It is a junction number, because it is equal to n+sod(n) for n = 19800378362298 and 19800378362307.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39408864 + ... + 39908135.

It is an arithmetic number, because the mean of its divisors is an integer number (979406316000).

Almost surely, 2^{19800378362364} is an apocalyptic number.

It is an amenable number.

19800378362364 is an abundant number, since it is smaller than the sum of its proper divisors (27211124805636).

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

19800378362364 is a wasteful number, since it uses less digits than its factorization.

19800378362364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79317370 (or 79317368 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 60.

The spelling of 19800378362364 in words is "nineteen trillion, eight hundred billion, three hundred seventy-eight million, three hundred sixty-two thousand, three hundred sixty-four".