2019978363996 has 18 divisors (see below), whose sum is σ = 5106056420192. Its totient is φ = 673326121320.

The previous prime is 2019978363983. The next prime is 2019978364039. The reversal of 2019978363996 is 6993638799102.

2019978363996 is a `hidden beast` number, since 2 + 0 + 199 + 78 + 363 + 9 + 9 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

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 5 ways as a sum of consecutive naturals, for example, 28055255020 + ... + 28055255091.

Almost surely, 2^{2019978363996} is an apocalyptic number.

It is an amenable number.

2019978363996 is an abundant number, since it is smaller than the sum of its proper divisors (3086078056196).

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

2019978363996 is a wasteful number, since it uses less digits than its factorization.

2019978363996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56110510121 (or 56110510116 counting only the distinct ones).

The product of its (nonzero) digits is 238085568, while the sum is 72.

The spelling of 2019978363996 in words is "two trillion, nineteen billion, nine hundred seventy-eight million, three hundred sixty-three thousand, nine hundred ninety-six".