4993391879 has 8 divisors (see below), whose sum is σ = 5791909248. Its totient is φ = 4216168440.

The previous prime is 4993391833. The next prime is 4993391959. The reversal of 4993391879 is 9781933994.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4993391879 - 2²⁰ = 4992343303 is a prime.

It is a super-3 number, since 3×4993391879³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4993391279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5322977 + ... + 5323914.

It is an arithmetic number, because the mean of its divisors is an integer number (723988656).

Almost surely, 2^4993391879 is an apocalyptic number.

4993391879 is a deficient number, since it is larger than the sum of its proper divisors (798517369).

4993391879 is a wasteful number, since it uses less digits than its factorization.

4993391879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10646965.

The product of its digits is 13226976, while the sum is 62.

The square root of 4993391879 is about 70663.9361980353. The cubic root of 4993391879 is about 1709.2222993688. Note that the first 4 decimals are identical.

The spelling of 4993391879 in words is "four billion, nine hundred ninety-three million, three hundred ninety-one thousand, eight hundred seventy-nine".