3261295791 has 40 divisors (see below), whose sum is σ = 5252551920. Its totient is φ = 2004663168.

The previous prime is 3261295789. The next prime is 3261295871. The reversal of 3261295791 is 1975921623.

It is a happy number.

It is not a de Polignac number, because 3261295791 - 2¹ = 3261295789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3261295781) 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 in 39 ways as a sum of consecutive naturals, for example, 1703851 + ... + 1705763.

It is an arithmetic number, because the mean of its divisors is an integer number (131313798).

Almost surely, 2^3261295791 is an apocalyptic number.

3261295791 is a deficient number, since it is larger than the sum of its proper divisors (1991256129).

3261295791 is a wasteful number, since it uses less digits than its factorization.

3261295791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3557 (or 3548 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 3261295791 is about 57107.7559618656. The cubic root of 3261295791 is about 1482.9621389189.

The spelling of 3261295791 in words is "three billion, two hundred sixty-one million, two hundred ninety-five thousand, seven hundred ninety-one".