3261429749 has 2 divisors, whose sum is σ = 3261429750. Its totient is φ = 3261429748.

The previous prime is 3261429737. The next prime is 3261429761. The reversal of 3261429749 is 9479241623.

It is a balanced prime because it is at equal distance from previous prime (3261429737) and next prime (3261429761).

It can be written as a sum of positive squares in only one way, i.e., 3201862225 + 59567524 = 56585^2 + 7718^2 .

It is an emirp because it is prime and its reverse (9479241623) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3261429749 - 2⁴ = 3261429733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3261429449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1630714874 + 1630714875.

It is an arithmetic number, because the mean of its divisors is an integer number (1630714875).

Almost surely, 2^3261429749 is an apocalyptic number.

It is an amenable number.

3261429749 is a deficient number, since it is larger than the sum of its proper divisors (1).

3261429749 is an equidigital number, since it uses as much as digits as its factorization.

3261429749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 47.

The square root of 3261429749 is about 57108.9288027713. The cubic root of 3261429749 is about 1482.9824429060.

The spelling of 3261429749 in words is "three billion, two hundred sixty-one million, four hundred twenty-nine thousand, seven hundred forty-nine".