2019078398136 has 16 divisors (see below), whose sum is σ = 5047695995400. Its totient is φ = 673026132704.

The previous prime is 2019078398111. The next prime is 2019078398221. The reversal of 2019078398136 is 6318938709102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42064133271 + ... + 42064133318.

Almost surely, 2^{2019078398136} is an apocalyptic number.

It is an amenable number.

2019078398136 is an abundant number, since it is smaller than the sum of its proper divisors (3028617597264).

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

2019078398136 is a wasteful number, since it uses less digits than its factorization.

2019078398136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84128266598 (or 84128266594 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 57.

The spelling of 2019078398136 in words is "two trillion, nineteen billion, seventy-eight million, three hundred ninety-eight thousand, one hundred thirty-six".