84573644443 has 4 divisors (see below), whose sum is σ = 87489977040. Its totient is φ = 81657311848.

The previous prime is 84573644431. The next prime is 84573644447. The reversal of 84573644443 is 34444637548.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84573644443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84573644447) 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, 1458166255 + ... + 1458166312.

It is an arithmetic number, because the mean of its divisors is an integer number (21872494260).

Almost surely, 2^84573644443 is an apocalyptic number.

84573644443 is a deficient number, since it is larger than the sum of its proper divisors (2916332597).

84573644443 is a wasteful number, since it uses less digits than its factorization.

84573644443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2916332596.

The product of its digits is 15482880, while the sum is 52.

The spelling of 84573644443 in words is "eighty-four billion, five hundred seventy-three million, six hundred forty-four thousand, four hundred forty-three".