422656072513 has 4 divisors (see below), whose sum is σ = 422660724948. Its totient is φ = 422651420080.

The previous prime is 422656072507. The next prime is 422656072529. The reversal of 422656072513 is 315270656224.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23398903089 + 399257169424 = 152967^2 + 631868^2 .

It is a cyclic number.

It is not a de Polignac number, because 422656072513 - 2²¹ = 422653975361 is a prime.

It is a super-2 number, since 2×422656072513² (a number of 24 digits) contains 22 as substring.

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 422656072513.

It is not an unprimeable number, because it can be changed into a prime (422656078513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2187178 + ... + 2372563.

It is an arithmetic number, because the mean of its divisors is an integer number (105665181237).

Almost surely, 2^422656072513 is an apocalyptic number.

It is an amenable number.

422656072513 is a deficient number, since it is larger than the sum of its proper divisors (4652435).

422656072513 is an equidigital number, since it uses as much as digits as its factorization.

422656072513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4652434.

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 422656072513 in words is "four hundred twenty-two billion, six hundred fifty-six million, seventy-two thousand, five hundred thirteen".