8782609491 has 16 divisors (see below), whose sum is σ = 13130647200. Its totient is φ = 5801354784.

The previous prime is 8782609469. The next prime is 8782609523. The reversal of 8782609491 is 1949062878.

It is not a de Polignac number, because 8782609491 - 2¹³ = 8782601299 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (8782609291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1489176 + ... + 1495061.

It is an arithmetic number, because the mean of its divisors is an integer number (820665450).

Almost surely, 2^8782609491 is an apocalyptic number.

8782609491 is a deficient number, since it is larger than the sum of its proper divisors (4348037709).

8782609491 is a wasteful number, since it uses less digits than its factorization.

8782609491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2984355 (or 2984349 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The square root of 8782609491 is about 93715.5776325366. The cubic root of 8782609491 is about 2063.1993434049.

The spelling of 8782609491 in words is "eight billion, seven hundred eighty-two million, six hundred nine thousand, four hundred ninety-one".