5120801998 has 48 divisors (see below), whose sum is σ = 8685399744. Its totient is φ = 2249907840.

The previous prime is 5120801977. The next prime is 5120802023. The reversal of 5120801998 is 8991080215.

It is a super-2 number, since 2×5120801998² = 52445226205441584008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1671388 + ... + 1674448.

It is an arithmetic number, because the mean of its divisors is an integer number (180945828).

Almost surely, 2^5120801998 is an apocalyptic number.

5120801998 is a deficient number, since it is larger than the sum of its proper divisors (3564597746).

5120801998 is a wasteful number, since it uses less digits than its factorization.

5120801998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3197 (or 3160 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 43.

The square root of 5120801998 is about 71559.7791919455. The cubic root of 5120801998 is about 1723.6377396351.

The spelling of 5120801998 in words is "five billion, one hundred twenty million, eight hundred one thousand, nine hundred ninety-eight".