4423622557 has 4 divisors (see below), whose sum is σ = 4434130396. Its totient is φ = 4413114720.

The previous prime is 4423622521. The next prime is 4423622573. The reversal of 4423622557 is 7552263244.

It is a happy number.

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 2106259236 + 2317363321 = 45894^2 + 48139^2 .

It is a cyclic number.

It is not a de Polignac number, because 4423622557 - 2⁷ = 4423622429 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 (4423622587) 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, 5253288 + ... + 5254129.

It is an arithmetic number, because the mean of its divisors is an integer number (1108532599).

Almost surely, 2^4423622557 is an apocalyptic number.

It is an amenable number.

4423622557 is a deficient number, since it is larger than the sum of its proper divisors (10507839).

4423622557 is a wasteful number, since it uses less digits than its factorization.

4423622557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10507838.

The product of its digits is 403200, while the sum is 40.

The square root of 4423622557 is about 66510.3191768014. The cubic root of 4423622557 is about 1641.5698032994.

The spelling of 4423622557 in words is "four billion, four hundred twenty-three million, six hundred twenty-two thousand, five hundred fifty-seven".