8491273259 has 24 divisors (see below), whose sum is σ = 10106477568. Its totient is φ = 7110754560.

The previous prime is 8491273249. The next prime is 8491273279. The reversal of 8491273259 is 9523721948.

8491273259 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8491273259 - 2¹⁶ = 8491207723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8491273249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 619094 + ... + 632660.

It is an arithmetic number, because the mean of its divisors is an integer number (421103232).

Almost surely, 2^8491273259 is an apocalyptic number.

8491273259 is a deficient number, since it is larger than the sum of its proper divisors (1615204309).

8491273259 is a wasteful number, since it uses less digits than its factorization.

8491273259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13875 (or 13868 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 50.

The square root of 8491273259 is about 92148.1050212103. The cubic root of 8491273259 is about 2040.1288893158.

The spelling of 8491273259 in words is "eight billion, four hundred ninety-one million, two hundred seventy-three thousand, two hundred fifty-nine".