2609331943 has 2 divisors, whose sum is σ = 2609331944. Its totient is φ = 2609331942.

The previous prime is 2609331941. The next prime is 2609331953. The reversal of 2609331943 is 3491339062.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2609331943 - 2¹ = 2609331941 is a prime.

It is a super-2 number, since 2×2609331943² = 13617226377520310498, which contains 22 as substring.

Together with 2609331941, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2609331896 and 2609331905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2609331941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1304665971 + 1304665972.

It is an arithmetic number, because the mean of its divisors is an integer number (1304665972).

Almost surely, 2^2609331943 is an apocalyptic number.

2609331943 is a deficient number, since it is larger than the sum of its proper divisors (1).

2609331943 is an equidigital number, since it uses as much as digits as its factorization.

2609331943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 40.

The square root of 2609331943 is about 51081.6204030373. The cubic root of 2609331943 is about 1376.7120391906.

The spelling of 2609331943 in words is "two billion, six hundred nine million, three hundred thirty-one thousand, nine hundred forty-three".