422743888391 has 8 divisors (see below), whose sum is σ = 461256226704. Its totient is φ = 384245062720.

The previous prime is 422743888379. The next prime is 422743888421. The reversal of 422743888391 is 193888347224.

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 422743888391 - 2²² = 422739694087 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 422743888391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422743888321) 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, 3312686 + ... + 3437931.

It is an arithmetic number, because the mean of its divisors is an integer number (57657028338).

Almost surely, 2^422743888391 is an apocalyptic number.

422743888391 is a deficient number, since it is larger than the sum of its proper divisors (38512338313).

422743888391 is a wasteful number, since it uses less digits than its factorization.

422743888391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6756321.

The product of its digits is 18579456, while the sum is 59.

The spelling of 422743888391 in words is "four hundred twenty-two billion, seven hundred forty-three million, eight hundred eighty-eight thousand, three hundred ninety-one".