2439130891 has 2 divisors, whose sum is σ = 2439130892. Its totient is φ = 2439130890.

The previous prime is 2439130829. The next prime is 2439130907. The reversal of 2439130891 is 1980319342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2439130891 - 2²³ = 2430742283 is a prime.

It is not a weakly prime, because it can be changed into another prime (2439136891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1219565445 + 1219565446.

It is an arithmetic number, because the mean of its divisors is an integer number (1219565446).

Almost surely, 2^2439130891 is an apocalyptic number.

2439130891 is a deficient number, since it is larger than the sum of its proper divisors (1).

2439130891 is an equidigital number, since it uses as much as digits as its factorization.

2439130891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 2439130891 is about 49387.5580586852. The cubic root of 2439130891 is about 1346.1032376601.

The spelling of 2439130891 in words is "two billion, four hundred thirty-nine million, one hundred thirty thousand, eight hundred ninety-one".