3959261290 has 16 divisors (see below), whose sum is σ = 7195863168. Its totient is φ = 1568328336.

The previous prime is 3959261237. The next prime is 3959261311. The reversal of 3959261290 is 921629593.

It is a self number, because there is not a number n which added to its sum of digits gives 3959261290.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1920942 + ... + 1923001.

It is an arithmetic number, because the mean of its divisors is an integer number (449741448).

Almost surely, 2^3959261290 is an apocalyptic number.

3959261290 is a deficient number, since it is larger than the sum of its proper divisors (3236601878).

3959261290 is a wasteful number, since it uses less digits than its factorization.

3959261290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3844053.

The product of its (nonzero) digits is 262440, while the sum is 46.

The square root of 3959261290 is about 62922.6611802139. The cubic root of 3959261290 is about 1581.9935965513.

The spelling of 3959261290 in words is "three billion, nine hundred fifty-nine million, two hundred sixty-one thousand, two hundred ninety".