5121999498 has 96 divisors (see below), whose sum is σ = 13183492608. Its totient is φ = 1311592800.

The previous prime is 5121999473. The next prime is 5121999541. The reversal of 5121999498 is 8949991215.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 218461 + ... + 240767.

It is an arithmetic number, because the mean of its divisors is an integer number (137328048).

Almost surely, 2^5121999498 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5121999498, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6591746304).

5121999498 is an abundant number, since it is smaller than the sum of its proper divisors (8061493110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5121999498 is a wasteful number, since it uses less digits than its factorization.

5121999498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22408 (or 22401 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 57.

The square root of 5121999498 is about 71568.1458331848. The cubic root of 5121999498 is about 1723.7720867758.

The spelling of 5121999498 in words is "five billion, one hundred twenty-one million, nine hundred ninety-nine thousand, four hundred ninety-eight".