4991958718 has 8 divisors (see below), whose sum is σ = 7491422448. Its totient is φ = 2494817904.

The previous prime is 4991958707. The next prime is 4991958721. The reversal of 4991958718 is 8178591994.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 575346 + ... + 583957.

It is an arithmetic number, because the mean of its divisors is an integer number (936427806).

Almost surely, 2^4991958718 is an apocalyptic number.

4991958718 is a deficient number, since it is larger than the sum of its proper divisors (2499463730).

4991958718 is a wasteful number, since it uses less digits than its factorization.

4991958718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161458.

The product of its digits is 6531840, while the sum is 61.

The square root of 4991958718 is about 70653.7947883905. The cubic root of 4991958718 is about 1709.0587615579.

The spelling of 4991958718 in words is "four billion, nine hundred ninety-one million, nine hundred fifty-eight thousand, seven hundred eighteen".