2019078398137 has 4 divisors (see below), whose sum is σ = 2022664683600. Its totient is φ = 2015492112676.

The previous prime is 2019078398111. The next prime is 2019078398221. The reversal of 2019078398137 is 7318938709102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2019078398137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2019078398237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1793141887 + ... + 1793143012.

It is an arithmetic number, because the mean of its divisors is an integer number (505666170900).

Almost surely, 2^{2019078398137} is an apocalyptic number.

It is an amenable number.

2019078398137 is a deficient number, since it is larger than the sum of its proper divisors (3586285463).

2019078398137 is an equidigital number, since it uses as much as digits as its factorization.

2019078398137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3586285462.

The product of its (nonzero) digits is 4572288, while the sum is 58.

The spelling of 2019078398137 in words is "two trillion, nineteen billion, seventy-eight million, three hundred ninety-eight thousand, one hundred thirty-seven".