8644532422445 has 32 divisors (see below), whose sum is σ = 11275717985280. Its totient is φ = 6338013073920.

The previous prime is 8644532422399. The next prime is 8644532422511. The reversal of 8644532422445 is 5442242354468.

It is not a de Polignac number, because 8644532422445 - 2³⁸ = 8369654515501 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7649759 + ... + 8706771.

It is an arithmetic number, because the mean of its divisors is an integer number (352366187040).

Almost surely, 2^{8644532422445} is an apocalyptic number.

It is an amenable number.

8644532422445 is a deficient number, since it is larger than the sum of its proper divisors (2631185562835).

8644532422445 is a wasteful number, since it uses less digits than its factorization.

8644532422445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059845.

The product of its digits is 29491200, while the sum is 53.

The spelling of 8644532422445 in words is "eight trillion, six hundred forty-four billion, five hundred thirty-two million, four hundred twenty-two thousand, four hundred forty-five".