6457445643 has 8 divisors (see below), whose sum is σ = 9392648256. Its totient is φ = 3913603400.

The previous prime is 6457445627. The next prime is 6457445651. The reversal of 6457445643 is 3465447546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6457445643 - 2⁴ = 6457445627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6457445592 and 6457445601.

It is not an unprimeable number, because it can be changed into a prime (6457445663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97840053 + ... + 97840118.

It is an arithmetic number, because the mean of its divisors is an integer number (1174081032).

Almost surely, 2^6457445643 is an apocalyptic number.

6457445643 is a deficient number, since it is larger than the sum of its proper divisors (2935202613).

6457445643 is a wasteful number, since it uses less digits than its factorization.

6457445643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195680185.

The product of its digits is 4838400, while the sum is 48.

The square root of 6457445643 is about 80358.2331998408. The cubic root of 6457445643 is about 1862.1739758634.

The spelling of 6457445643 in words is "six billion, four hundred fifty-seven million, four hundred forty-five thousand, six hundred forty-three".