3909449875 has 8 divisors (see below), whose sum is σ = 4878993600. Its totient is φ = 3127559800.

The previous prime is 3909449851. The next prime is 3909449911. The reversal of 3909449875 is 5789449093.

It is a de Polignac number, because none of the positive numbers 2^k-3909449875 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15637675 + ... + 15637924.

It is an arithmetic number, because the mean of its divisors is an integer number (609874200).

Almost surely, 2^3909449875 is an apocalyptic number.

3909449875 is a deficient number, since it is larger than the sum of its proper divisors (969543725).

3909449875 is an equidigital number, since it uses as much as digits as its factorization.

3909449875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31275614 (or 31275604 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 58.

The square root of 3909449875 is about 62525.5937596757. The cubic root of 3909449875 is about 1575.3312312508.

The spelling of 3909449875 in words is "three billion, nine hundred nine million, four hundred forty-nine thousand, eight hundred seventy-five".