6634472509 has 16 divisors (see below), whose sum is σ = 7608044160. Its totient is φ = 5667387840.

The previous prime is 6634472491. The next prime is 6634472527. The reversal of 6634472509 is 9052744366.

It is an interprime number because it is at equal distance from previous prime (6634472491) and next prime (6634472527).

It is a cyclic number.

It is not a de Polignac number, because 6634472509 - 2⁹ = 6634471997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6634472549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3707587 + ... + 3709375.

It is an arithmetic number, because the mean of its divisors is an integer number (475502760).

Almost surely, 2^6634472509 is an apocalyptic number.

It is an amenable number.

6634472509 is a deficient number, since it is larger than the sum of its proper divisors (973571651).

6634472509 is a wasteful number, since it uses less digits than its factorization.

6634472509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3300.

The product of its (nonzero) digits is 1088640, while the sum is 46.

The square root of 6634472509 is about 81452.2713556841. The cubic root of 6634472509 is about 1879.0375816590.

The spelling of 6634472509 in words is "six billion, six hundred thirty-four million, four hundred seventy-two thousand, five hundred nine".