2078159389 has 2 divisors, whose sum is σ = 2078159390. Its totient is φ = 2078159388.

The previous prime is 2078159351. The next prime is 2078159417. The reversal of 2078159389 is 9839518702.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1959567289 + 118592100 = 44267^2 + 10890^2 .

It is a cyclic number.

It is not a de Polignac number, because 2078159389 - 2¹⁵ = 2078126621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2078159689) by changing a digit.

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 as a sum of consecutive naturals, namely, 1039079694 + 1039079695.

It is an arithmetic number, because the mean of its divisors is an integer number (1039079695).

Almost surely, 2^2078159389 is an apocalyptic number.

It is an amenable number.

2078159389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2078159389 is an equidigital number, since it uses as much as digits as its factorization.

2078159389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 52.

The square root of 2078159389 is about 45586.8335048619. The cubic root of 2078159389 is about 1276.1242195623.

The spelling of 2078159389 in words is "two billion, seventy-eight million, one hundred fifty-nine thousand, three hundred eighty-nine".