2856422390223 has 4 divisors (see below), whose sum is σ = 3808563186968. Its totient is φ = 1904281593480.

The previous prime is 2856422390189. The next prime is 2856422390249. The reversal of 2856422390223 is 3220932246582.

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

It is not a de Polignac number, because 2856422390223 - 2²¹ = 2856420293071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2856422390273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476070398368 + ... + 476070398373.

It is an arithmetic number, because the mean of its divisors is an integer number (952140796742).

Almost surely, 2^{2856422390223} is an apocalyptic number.

2856422390223 is a deficient number, since it is larger than the sum of its proper divisors (952140796745).

2856422390223 is an equidigital number, since it uses as much as digits as its factorization.

2856422390223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952140796744.

The product of its (nonzero) digits is 2488320, while the sum is 48.

The spelling of 2856422390223 in words is "two trillion, eight hundred fifty-six billion, four hundred twenty-two million, three hundred ninety thousand, two hundred twenty-three".