4222686418645 has 16 divisors (see below), whose sum is σ = 5242899861360. Its totient is φ = 3261073665024.

The previous prime is 4222686418547. The next prime is 4222686418679. The reversal of 4222686418645 is 5468146862224.

It can be written as a sum of positive squares in 8 ways, for example, as 348032743249 + 3874653675396 = 589943^2 + 1968414^2 .

It is a cyclic number.

It is not a de Polignac number, because 4222686418645 - 2³⁹ = 3672930604757 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4222686418645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1814532 + ... + 3426061.

It is an arithmetic number, because the mean of its divisors is an integer number (327681241335).

Almost surely, 2^{4222686418645} is an apocalyptic number.

It is an amenable number.

4222686418645 is a deficient number, since it is larger than the sum of its proper divisors (1020213442715).

4222686418645 is a wasteful number, since it uses less digits than its factorization.

4222686418645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5246184.

The product of its digits is 35389440, while the sum is 58.

The spelling of 4222686418645 in words is "four trillion, two hundred twenty-two billion, six hundred eighty-six million, four hundred eighteen thousand, six hundred forty-five".