51842557189 has 8 divisors (see below), whose sum is σ = 51936757920. Its totient is φ = 51748444176.

The previous prime is 51842557187. The next prime is 51842557199. The reversal of 51842557189 is 98175524815.

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

It is a cyclic number.

It is not a de Polignac number, because 51842557189 - 2¹ = 51842557187 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51842557183) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1224594 + ... + 1266220.

It is an arithmetic number, because the mean of its divisors is an integer number (6492094740).

Almost surely, 2^51842557189 is an apocalyptic number.

It is an amenable number.

51842557189 is a deficient number, since it is larger than the sum of its proper divisors (94200731).

51842557189 is a wasteful number, since it uses less digits than its factorization.

51842557189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43859.

The product of its digits is 4032000, while the sum is 55.

The spelling of 51842557189 in words is "fifty-one billion, eight hundred forty-two million, five hundred fifty-seven thousand, one hundred eighty-nine".