6509420469 has 16 divisors (see below), whose sum is σ = 9696872640. Its totient is φ = 4315634640.

The previous prime is 6509420459. The next prime is 6509420497. The reversal of 6509420469 is 9640249056.

It is not a de Polignac number, because 6509420469 - 2¹⁵ = 6509387701 is a prime.

It is a super-2 number, since 2×6509420469² = 84745109684472359922, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6509420459) 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 15 ways as a sum of consecutive naturals, for example, 661107 + ... + 670880.

It is an arithmetic number, because the mean of its divisors is an integer number (606054540).

Almost surely, 2^6509420469 is an apocalyptic number.

It is an amenable number.

6509420469 is a deficient number, since it is larger than the sum of its proper divisors (3187452171).

6509420469 is a wasteful number, since it uses less digits than its factorization.

6509420469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332177 (or 1332171 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 6509420469 is about 80680.9795986638. The cubic root of 6509420469 is about 1867.1567330884.

The spelling of 6509420469 in words is "six billion, five hundred nine million, four hundred twenty thousand, four hundred sixty-nine".