3609969139 has 16 divisors (see below), whose sum is σ = 4202150400. Its totient is φ = 3037408704.

The previous prime is 3609969137. The next prime is 3609969151. The reversal of 3609969139 is 9319699063.

It is a cyclic number.

It is not a de Polignac number, because 3609969139 - 2¹ = 3609969137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3609969139.

It is not an unprimeable number, because it can be changed into a prime (3609969137) 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 in 15 ways as a sum of consecutive naturals, for example, 65754 + ... + 107440.

It is an arithmetic number, because the mean of its divisors is an integer number (262634400).

Almost surely, 2^3609969139 is an apocalyptic number.

3609969139 is a deficient number, since it is larger than the sum of its proper divisors (592181261).

3609969139 is a wasteful number, since it uses less digits than its factorization.

3609969139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41922.

The product of its (nonzero) digits is 2125764, while the sum is 55.

The square root of 3609969139 is about 60083.0187240954. The cubic root of 3609969139 is about 1534.0322729994.

The spelling of 3609969139 in words is "three billion, six hundred nine million, nine hundred sixty-nine thousand, one hundred thirty-nine".