2329391891 has 2 divisors, whose sum is σ = 2329391892. Its totient is φ = 2329391890.

The previous prime is 2329391851. The next prime is 2329391941. The reversal of 2329391891 is 1981939232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2329391891 - 2²² = 2325197587 is a prime.

It is not a weakly prime, because it can be changed into another prime (2329391851) 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 as a sum of consecutive naturals, namely, 1164695945 + 1164695946.

It is an arithmetic number, because the mean of its divisors is an integer number (1164695946).

Almost surely, 2^2329391891 is an apocalyptic number.

2329391891 is a deficient number, since it is larger than the sum of its proper divisors (1).

2329391891 is an equidigital number, since it uses as much as digits as its factorization.

2329391891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 47.

The square root of 2329391891 is about 48263.7741064662. The cubic root of 2329391891 is about 1325.6051615146.

The spelling of 2329391891 in words is "two billion, three hundred twenty-nine million, three hundred ninety-one thousand, eight hundred ninety-one".