5579721878 has 32 divisors (see below), whose sum is σ = 9118907424. Its totient is φ = 2549878272.

The previous prime is 5579721859. The next prime is 5579721883. The reversal of 5579721878 is 8781279755.

It is a super-2 number, since 2×5579721878² = 62266592471663693768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 696725 + ... + 704687.

It is an arithmetic number, because the mean of its divisors is an integer number (284965857).

Almost surely, 2^5579721878 is an apocalyptic number.

5579721878 is a deficient number, since it is larger than the sum of its proper divisors (3539185546).

5579721878 is a wasteful number, since it uses less digits than its factorization.

5579721878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8576.

The product of its digits is 9878400, while the sum is 59.

The square root of 5579721878 is about 74697.5359566833. The cubic root of 5579721878 is about 1773.6619556134.

The spelling of 5579721878 in words is "five billion, five hundred seventy-nine million, seven hundred twenty-one thousand, eight hundred seventy-eight".