6909545469 has 4 divisors (see below), whose sum is σ = 9212727296. Its totient is φ = 4606363644.

The previous prime is 6909545431. The next prime is 6909545473. The reversal of 6909545469 is 9645459096.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6909545469 - 2²⁰ = 6908496893 is a prime.

It is a super-2 number, since 2×6909545469² = 95483637176356859922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6909545969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1151590909 + ... + 1151590914.

It is an arithmetic number, because the mean of its divisors is an integer number (2303181824).

Almost surely, 2^6909545469 is an apocalyptic number.

It is an amenable number.

6909545469 is a deficient number, since it is larger than the sum of its proper divisors (2303181827).

6909545469 is a wasteful number, since it uses less digits than its factorization.

6909545469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2303181826.

The product of its (nonzero) digits is 10497600, while the sum is 57.

The square root of 6909545469 is about 83123.6757428351. The cubic root of 6909545469 is about 1904.6557538901.

The spelling of 6909545469 in words is "six billion, nine hundred nine million, five hundred forty-five thousand, four hundred sixty-nine".