3549428791 has 2 divisors, whose sum is σ = 3549428792. Its totient is φ = 3549428790.

The previous prime is 3549428789. The next prime is 3549428797. The reversal of 3549428791 is 1978249453.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3549428791 - 2¹ = 3549428789 is a prime.

Together with 3549428789, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3549428797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1774714395 + 1774714396.

It is an arithmetic number, because the mean of its divisors is an integer number (1774714396).

Almost surely, 2^3549428791 is an apocalyptic number.

3549428791 is a deficient number, since it is larger than the sum of its proper divisors (1).

3549428791 is an equidigital number, since it uses as much as digits as its factorization.

3549428791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 52.

The square root of 3549428791 is about 59577.0827667821. The cubic root of 3549428791 is about 1525.4084783764.

The spelling of 3549428791 in words is "three billion, five hundred forty-nine million, four hundred twenty-eight thousand, seven hundred ninety-one".