3925770509 has 12 divisors (see below), whose sum is σ = 4217166900. Its totient is φ = 3653303808.

The previous prime is 3925770491. The next prime is 3925770521. The reversal of 3925770509 is 9050775293.

It can be written as a sum of positive squares in 6 ways, for example, as 784168009 + 3141602500 = 28003^2 + 56050^2 .

It is not a de Polignac number, because 3925770509 - 2²⁸ = 3657335053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3925770809) 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 11 ways as a sum of consecutive naturals, for example, 50594 + ... + 102035.

It is an arithmetic number, because the mean of its divisors is an integer number (351430575).

Almost surely, 2^3925770509 is an apocalyptic number.

It is an amenable number.

3925770509 is a deficient number, since it is larger than the sum of its proper divisors (291396391).

3925770509 is a wasteful number, since it uses less digits than its factorization.

3925770509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152752 (or 152735 counting only the distinct ones).

The product of its (nonzero) digits is 595350, while the sum is 47.

The square root of 3925770509 is about 62655.9694602198. The cubic root of 3925770509 is about 1577.5203465654.

The spelling of 3925770509 in words is "three billion, nine hundred twenty-five million, seven hundred seventy thousand, five hundred nine".