8581424879 has 4 divisors (see below), whose sum is σ = 9033078840. Its totient is φ = 8129770920.

The previous prime is 8581424827. The next prime is 8581424893. The reversal of 8581424879 is 9784241858.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 8581424879 - 2¹⁶ = 8581359343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8581424899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225826952 + ... + 225826989.

It is an arithmetic number, because the mean of its divisors is an integer number (2258269710).

Almost surely, 2^8581424879 is an apocalyptic number.

8581424879 is a deficient number, since it is larger than the sum of its proper divisors (451653961).

8581424879 is a wasteful number, since it uses less digits than its factorization.

8581424879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451653960.

The product of its digits is 5160960, while the sum is 56.

The square root of 8581424879 is about 92635.9804773502. The cubic root of 8581424879 is about 2047.3234853246.

The spelling of 8581424879 in words is "eight billion, five hundred eighty-one million, four hundred twenty-four thousand, eight hundred seventy-nine".