5751806121 has 24 divisors (see below), whose sum is σ = 8676720000. Its totient is φ = 3664717056.

The previous prime is 5751806077. The next prime is 5751806143. The reversal of 5751806121 is 1216081575.

5751806121 is a `hidden beast` number, since 575 + 1 + 8 + 0 + 61 + 21 = 666.

It is not a de Polignac number, because 5751806121 - 2¹³ = 5751797929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5751806191) by changing a digit.

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, 247420 + ... + 269666.

It is an arithmetic number, because the mean of its divisors is an integer number (361530000).

Almost surely, 2^5751806121 is an apocalyptic number.

It is an amenable number.

5751806121 is a deficient number, since it is larger than the sum of its proper divisors (2924913879).

5751806121 is a wasteful number, since it uses less digits than its factorization.

5751806121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23525 (or 23522 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 36.

The square root of 5751806121 is about 75840.6627146678. The cubic root of 5751806121 is about 1791.7114932050.

Adding to 5751806121 its reverse (1216081575), we get a palindrome (6967887696).

The spelling of 5751806121 in words is "five billion, seven hundred fifty-one million, eight hundred six thousand, one hundred twenty-one".