4991496218 has 8 divisors (see below), whose sum is σ = 7489685280. Its totient is φ = 2494934460.

The previous prime is 4991496149. The next prime is 4991496277. The reversal of 4991496218 is 8126941994.

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

It is a self number, because there is not a number n which added to its sum of digits gives 4991496218.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399128 + ... + 411443.

It is an arithmetic number, because the mean of its divisors is an integer number (936210660).

Almost surely, 2^4991496218 is an apocalyptic number.

4991496218 is a deficient number, since it is larger than the sum of its proper divisors (2498189062).

4991496218 is a wasteful number, since it uses less digits than its factorization.

4991496218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813652.

The product of its digits is 1119744, while the sum is 53.

The square root of 4991496218 is about 70650.5217107418. The cubic root of 4991496218 is about 1709.0059790641.

The spelling of 4991496218 in words is "four billion, nine hundred ninety-one million, four hundred ninety-six thousand, two hundred eighteen".