4228627991 has 32 divisors (see below), whose sum is σ = 5310006912. Its totient is φ = 3284582400.

The previous prime is 4228627967. The next prime is 4228628051. The reversal of 4228627991 is 1997268224.

It is a cyclic number.

It is not a de Polignac number, because 4228627991 - 2⁶ = 4228627927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4228627951) 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 31 ways as a sum of consecutive naturals, for example, 422141 + ... + 432041.

It is an arithmetic number, because the mean of its divisors is an integer number (165937716).

Almost surely, 2^4228627991 is an apocalyptic number.

4228627991 is a deficient number, since it is larger than the sum of its proper divisors (1081378921).

4228627991 is a wasteful number, since it uses less digits than its factorization.

4228627991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10059.

The product of its digits is 870912, while the sum is 50.

The square root of 4228627991 is about 65027.9016346060. The cubic root of 4228627991 is about 1617.0861596399.

The spelling of 4228627991 in words is "four billion, two hundred twenty-eight million, six hundred twenty-seven thousand, nine hundred ninety-one".