5118141821 has 12 divisors (see below), whose sum is σ = 5708474772. Its totient is φ = 4561517184.

The previous prime is 5118141817. The next prime is 5118141827. The reversal of 5118141821 is 1281418115.

It can be written as a sum of positive squares in 6 ways, for example, as 13039321 + 5105102500 = 3611^2 + 71450^2 .

It is not a de Polignac number, because 5118141821 - 2² = 5118141817 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5118141827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223136 + ... + 245001.

It is an arithmetic number, because the mean of its divisors is an integer number (475706231).

Almost surely, 2^5118141821 is an apocalyptic number.

It is an amenable number.

5118141821 is a deficient number, since it is larger than the sum of its proper divisors (590332951).

5118141821 is a wasteful number, since it uses less digits than its factorization.

5118141821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468208 (or 468179 counting only the distinct ones).

The product of its digits is 2560, while the sum is 32.

The square root of 5118141821 is about 71541.1896811900. The cubic root of 5118141821 is about 1723.3392202704.

Adding to 5118141821 its reverse (1281418115), we get a palindrome (6399559936).

The spelling of 5118141821 in words is "five billion, one hundred eighteen million, one hundred forty-one thousand, eight hundred twenty-one".