6909464409 has 16 divisors (see below), whose sum is σ = 9406642752. Its totient is φ = 4509672128.

The previous prime is 6909464383. The next prime is 6909464423. The reversal of 6909464409 is 9044649096.

It is a cyclic number.

It is not a de Polignac number, because 6909464409 - 2¹⁹ = 6908940121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6909464489) 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, 27727 + ... + 120779.

It is an arithmetic number, because the mean of its divisors is an integer number (587915172).

Almost surely, 2^6909464409 is an apocalyptic number.

It is an amenable number.

6909464409 is a deficient number, since it is larger than the sum of its proper divisors (2497178343).

6909464409 is a wasteful number, since it uses less digits than its factorization.

6909464409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93576.

The product of its (nonzero) digits is 1679616, while the sum is 51.

The square root of 6909464409 is about 83123.1881546900. The cubic root of 6909464409 is about 1904.6483056433.

The spelling of 6909464409 in words is "six billion, nine hundred nine million, four hundred sixty-four thousand, four hundred nine".