643453152422 has 8 divisors (see below), whose sum is σ = 966355345872. Its totient is φ = 321334703800.

The previous prime is 643453152383. The next prime is 643453152449. The reversal of 643453152422 is 224251354346.

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

It is a self number, because there is not a number n which added to its sum of digits gives 643453152422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195934154 + ... + 195937437.

It is an arithmetic number, because the mean of its divisors is an integer number (120794418234).

Almost surely, 2^643453152422 is an apocalyptic number.

643453152422 is a deficient number, since it is larger than the sum of its proper divisors (322902193450).

643453152422 is a wasteful number, since it uses less digits than its factorization.

643453152422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391872414.

The product of its digits is 691200, while the sum is 41.

The spelling of 643453152422 in words is "six hundred forty-three billion, four hundred fifty-three million, one hundred fifty-two thousand, four hundred twenty-two".