6469686420 has 24 divisors (see below), whose sum is σ = 18115122144. Its totient is φ = 1725249696.

The previous prime is 6469686397. The next prime is 6469686437. The reversal of 6469686420 is 246869646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53913994 + ... + 53914113.

It is an arithmetic number, because the mean of its divisors is an integer number (754796756).

Almost surely, 2^6469686420 is an apocalyptic number.

6469686420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6469686420 is an abundant number, since it is smaller than the sum of its proper divisors (11645435724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6469686420 is a wasteful number, since it uses less digits than its factorization.

6469686420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107828119 (or 107828117 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 51.

The square root of 6469686420 is about 80434.3609410804. The cubic root of 6469686420 is about 1863.3498829570.

The spelling of 6469686420 in words is "six billion, four hundred sixty-nine million, six hundred eighty-six thousand, four hundred twenty".