6469472431 has 4 divisors (see below), whose sum is σ = 6809971000. Its totient is φ = 6128973864.

The previous prime is 6469472423. The next prime is 6469472509. The reversal of 6469472431 is 1342749646.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6469472431 - 2³ = 6469472423 is a prime.

It is a super-2 number, since 2×6469472431² = 83708147070938099522, 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 (6469479431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170249256 + ... + 170249293.

It is an arithmetic number, because the mean of its divisors is an integer number (1702492750).

Almost surely, 2^6469472431 is an apocalyptic number.

6469472431 is a deficient number, since it is larger than the sum of its proper divisors (340498569).

6469472431 is a wasteful number, since it uses less digits than its factorization.

6469472431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340498568.

The product of its digits is 870912, while the sum is 46.

The square root of 6469472431 is about 80433.0307212155. The cubic root of 6469472431 is about 1863.3293389024.

The spelling of 6469472431 in words is "six billion, four hundred sixty-nine million, four hundred seventy-two thousand, four hundred thirty-one".