6925456809 has 24 divisors (see below), whose sum is σ = 10245984320. Its totient is φ = 4506293088.

The previous prime is 6925456801. The next prime is 6925456831. The reversal of 6925456809 is 9086545296.

It is a happy number.

6925456809 is a `hidden beast` number, since 6 + 92 + 545 + 6 + 8 + 0 + 9 = 666.

It is not a de Polignac number, because 6925456809 - 2³ = 6925456801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6925456801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13044 + ... + 118410.

Almost surely, 2^6925456809 is an apocalyptic number.

It is an amenable number.

6925456809 is a deficient number, since it is larger than the sum of its proper divisors (3320527511).

6925456809 is a wasteful number, since it uses less digits than its factorization.

6925456809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105549 (or 105546 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The square root of 6925456809 is about 83219.3295394766. The cubic root of 6925456809 is about 1906.1166503885.

The spelling of 6925456809 in words is "six billion, nine hundred twenty-five million, four hundred fifty-six thousand, eight hundred nine".