422340863278 has 4 divisors (see below), whose sum is σ = 633511294920. Its totient is φ = 211170431638.

The previous prime is 422340863261. The next prime is 422340863279. The reversal of 422340863278 is 872368043224.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422340863279) 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 as a sum of consecutive naturals, namely, 105585215818 + ... + 105585215821.

It is an arithmetic number, because the mean of its divisors is an integer number (158377823730).

Almost surely, 2^422340863278 is an apocalyptic number.

422340863278 is a deficient number, since it is larger than the sum of its proper divisors (211170431642).

422340863278 is a wasteful number, since it uses less digits than its factorization.

422340863278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211170431641.

The product of its (nonzero) digits is 3096576, while the sum is 49.

The spelling of 422340863278 in words is "four hundred twenty-two billion, three hundred forty million, eight hundred sixty-three thousand, two hundred seventy-eight".