4243497999 has 32 divisors (see below), whose sum is σ = 6365399040. Its totient is φ = 2494998528.

The previous prime is 4243497917. The next prime is 4243498009. The reversal of 4243497999 is 9997943424.

It is not a de Polignac number, because 4243497999 - 2⁸ = 4243497743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4243497299) 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, 987247 + ... + 991535.

It is an arithmetic number, because the mean of its divisors is an integer number (198918720).

Almost surely, 2^4243497999 is an apocalyptic number.

4243497999 is a deficient number, since it is larger than the sum of its proper divisors (2121901041).

4243497999 is a wasteful number, since it uses less digits than its factorization.

4243497999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5431.

The product of its digits is 17635968, while the sum is 60.

The square root of 4243497999 is about 65142.1368931048. The cubic root of 4243497999 is about 1618.9794414189.

It can be divided in two parts, 42434979 and 99, that added together give a triangular number (42435078 = T₉₂₁₂).

The spelling of 4243497999 in words is "four billion, two hundred forty-three million, four hundred ninety-seven thousand, nine hundred ninety-nine".