422745267646 has 8 divisors (see below), whose sum is σ = 682896201624. Its totient is φ = 195113200440.

The previous prime is 422745267641. The next prime is 422745267649. The reversal of 422745267646 is 646762547224.

It is a happy number.

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

It is a super-2 number, since 2×422745267646² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422745267641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8129716660 + ... + 8129716711.

It is an arithmetic number, because the mean of its divisors is an integer number (85362025203).

Almost surely, 2^422745267646 is an apocalyptic number.

422745267646 is a deficient number, since it is larger than the sum of its proper divisors (260150933978).

422745267646 is a wasteful number, since it uses less digits than its factorization.

422745267646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16259433386.

The product of its digits is 27095040, while the sum is 55.

The spelling of 422745267646 in words is "four hundred twenty-two billion, seven hundred forty-five million, two hundred sixty-seven thousand, six hundred forty-six".