6453432657 has 24 divisors (see below), whose sum is σ = 10996943360. Its totient is φ = 3568717440.

The previous prime is 6453432649. The next prime is 6453432691. The reversal of 6453432657 is 7562343546.

6453432657 is a `hidden beast` number, since 6 + 45 + 343 + 265 + 7 = 666.

It is not a de Polignac number, because 6453432657 - 2³ = 6453432649 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6453432857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1650232 + ... + 1654137.

Almost surely, 2^6453432657 is an apocalyptic number.

It is an amenable number.

6453432657 is a deficient number, since it is larger than the sum of its proper divisors (4543510703).

6453432657 is a wasteful number, since it uses less digits than its factorization.

6453432657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3304413 (or 3304410 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 45.

The square root of 6453432657 is about 80333.2599674630. The cubic root of 6453432657 is about 1861.7881459728.

The spelling of 6453432657 in words is "six billion, four hundred fifty-three million, four hundred thirty-two thousand, six hundred fifty-seven".