2142718379 has 2 divisors, whose sum is σ = 2142718380. Its totient is φ = 2142718378.

The previous prime is 2142718349. The next prime is 2142718427. The reversal of 2142718379 is 9738172412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2142718379 - 2²⁸ = 1874282923 is a prime.

It is not a weakly prime, because it can be changed into another prime (2142718309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071359189 + 1071359190.

It is an arithmetic number, because the mean of its divisors is an integer number (1071359190).

Almost surely, 2^2142718379 is an apocalyptic number.

2142718379 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142718379 is an equidigital number, since it uses as much as digits as its factorization.

2142718379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 44.

The square root of 2142718379 is about 46289.5061434014. The cubic root of 2142718379 is about 1289.2041600858.

The spelling of 2142718379 in words is "two billion, one hundred forty-two million, seven hundred eighteen thousand, three hundred seventy-nine".