8495572643 has 4 divisors (see below), whose sum is σ = 8497029000. Its totient is φ = 8494116288.

The previous prime is 8495572637. The next prime is 8495572669. The reversal of 8495572643 is 3462755948.

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 8495572643 - 2⁸ = 8495572387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8495572633) 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, 719393 + ... + 731106.

It is an arithmetic number, because the mean of its divisors is an integer number (2124257250).

Almost surely, 2^8495572643 is an apocalyptic number.

8495572643 is a deficient number, since it is larger than the sum of its proper divisors (1456357).

8495572643 is a wasteful number, since it uses less digits than its factorization.

8495572643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456356.

The product of its digits is 7257600, while the sum is 53.

The square root of 8495572643 is about 92171.4307310025. The cubic root of 8495572643 is about 2040.4731571801.

The spelling of 8495572643 in words is "eight billion, four hundred ninety-five million, five hundred seventy-two thousand, six hundred forty-three".