4264331985 has 24 divisors (see below), whose sum is σ = 7393147944. Its totient is φ = 2273806080.

The previous prime is 4264331957. The next prime is 4264331987. The reversal of 4264331985 is 5891334624.

4264331985 is a `hidden beast` number, since 4 + 26 + 433 + 198 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7160976 + 4257171009 = 2676^2 + 65247^2 .

It is not a de Polignac number, because 4264331985 - 2¹⁹ = 4263807697 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 4264331985.

It is not an unprimeable number, because it can be changed into a prime (4264331987) 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 23 ways as a sum of consecutive naturals, for example, 287655 + ... + 302115.

It is an arithmetic number, because the mean of its divisors is an integer number (308047831).

Almost surely, 2^4264331985 is an apocalyptic number.

4264331985 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4264331985 is a deficient number, since it is larger than the sum of its proper divisors (3128815959).

4264331985 is a wasteful number, since it uses less digits than its factorization.

4264331985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21025 (or 21022 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 4264331985 is about 65301.8528450763. The cubic root of 4264331985 is about 1621.6246447296.

The spelling of 4264331985 in words is "four billion, two hundred sixty-four million, three hundred thirty-one thousand, nine hundred eighty-five".