4994391879 has 48 divisors (see below), whose sum is σ = 7973102592. Its totient is φ = 3116903328.

The previous prime is 4994391859. The next prime is 4994391901. The reversal of 4994391879 is 9781934994.

It is not a de Polignac number, because 4994391879 - 2⁵ = 4994391847 is a prime.

It is a super-3 number, since 3×4994391879³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4994391839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 253177 + ... + 272189.

It is an arithmetic number, because the mean of its divisors is an integer number (166106304).

Almost surely, 2^4994391879 is an apocalyptic number.

4994391879 is a deficient number, since it is larger than the sum of its proper divisors (2978710713).

4994391879 is a wasteful number, since it uses less digits than its factorization.

4994391879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19098 (or 19086 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 63.

The square root of 4994391879 is about 70671.0115889111. The cubic root of 4994391879 is about 1709.3363907022.

The spelling of 4994391879 in words is "four billion, nine hundred ninety-four million, three hundred ninety-one thousand, eight hundred seventy-nine".