19374879485388 has 24 divisors (see below), whose sum is σ = 51666345294592. Its totient is φ = 5535679852944.

The previous prime is 19374879485287. The next prime is 19374879485417. The reversal of 19374879485388 is 88358497847391.

It is a Harshad number since it is a multiple of its sum of digits (84), and also a Moran number because the ratio is a prime number: 230653327207 = 19374879485388 / (1 + 9 + 3 + 7 + 4 + 8 + 7 + 9 + 4 + 8 + 5 + 3 + 8 + 8).

It is a self number, because there is not a number n which added to its sum of digits gives 19374879485388.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115326663520 + ... + 115326663687.

Almost surely, 2^{19374879485388} is an apocalyptic number.

It is an amenable number.

19374879485388 is an abundant number, since it is smaller than the sum of its proper divisors (32291465809204).

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

19374879485388 is a wasteful number, since it uses less digits than its factorization.

19374879485388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230653327221 (or 230653327219 counting only the distinct ones).

The product of its digits is 11705057280, while the sum is 84.

The spelling of 19374879485388 in words is "nineteen trillion, three hundred seventy-four billion, eight hundred seventy-nine million, four hundred eighty-five thousand, three hundred eighty-eight".