3268742591 has 2 divisors, whose sum is σ = 3268742592. Its totient is φ = 3268742590.

The previous prime is 3268742573. The next prime is 3268742597. The reversal of 3268742591 is 1952478623.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3268742591 - 2¹⁸ = 3268480447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3268742597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1634371295 + 1634371296.

It is an arithmetic number, because the mean of its divisors is an integer number (1634371296).

Almost surely, 2^3268742591 is an apocalyptic number.

3268742591 is a deficient number, since it is larger than the sum of its proper divisors (1).

3268742591 is an equidigital number, since it uses as much as digits as its factorization.

3268742591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 47.

The square root of 3268742591 is about 57172.9183355197. The cubic root of 3268742591 is about 1484.0900063288.

The spelling of 3268742591 in words is "three billion, two hundred sixty-eight million, seven hundred forty-two thousand, five hundred ninety-one".