4319991268 has 6 divisors (see below), whose sum is σ = 7559984726. Its totient is φ = 2159995632.

The previous prime is 4319991253. The next prime is 4319991287. The reversal of 4319991268 is 8621999134.

It can be written as a sum of positive squares in only one way, i.e., 2429306944 + 1890684324 = 49288^2 + 43482^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 539998905 + ... + 539998912.

Almost surely, 2^4319991268 is an apocalyptic number.

It is an amenable number.

4319991268 is a deficient number, since it is larger than the sum of its proper divisors (3239993458).

4319991268 is a wasteful number, since it uses less digits than its factorization.

4319991268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079997821 (or 1079997819 counting only the distinct ones).

The product of its digits is 839808, while the sum is 52.

The square root of 4319991268 is about 65726.6404740118. The cubic root of 4319991268 is about 1628.6494726277.

It can be divided in two parts, 431999126 and 8, that added together give a palindrome (431999134).

The spelling of 4319991268 in words is "four billion, three hundred nineteen million, nine hundred ninety-one thousand, two hundred sixty-eight".