2019123298887 has 16 divisors (see below), whose sum is σ = 2710077984768. Its totient is φ = 1337151483360.

The previous prime is 2019123298861. The next prime is 2019123298919. The reversal of 2019123298887 is 7888923219102.

It is not a de Polignac number, because 2019123298887 - 2³⁰ = 2018049557063 is a prime.

It is a super-2 number, since 2×2019123298887² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2019123298887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2019123298837) by changing a digit.

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, 2949564 + ... + 3569057.

It is an arithmetic number, because the mean of its divisors is an integer number (169379874048).

Almost surely, 2^{2019123298887} is an apocalyptic number.

2019123298887 is a deficient number, since it is larger than the sum of its proper divisors (690954685881).

2019123298887 is a wasteful number, since it uses less digits than its factorization.

2019123298887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6519310.

The product of its (nonzero) digits is 6967296, while the sum is 60.

The spelling of 2019123298887 in words is "two trillion, nineteen billion, one hundred twenty-three million, two hundred ninety-eight thousand, eight hundred eighty-seven".