51144112115 has 4 divisors (see below), whose sum is σ = 61372934544. Its totient is φ = 40915289688.

The previous prime is 51144112099. The next prime is 51144112157. The reversal of 51144112115 is 51121144115.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51144112115 - 2⁴ = 51144112099 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5114411207 + ... + 5114411216.

It is an arithmetic number, because the mean of its divisors is an integer number (15343233636).

Almost surely, 2^51144112115 is an apocalyptic number.

51144112115 is a deficient number, since it is larger than the sum of its proper divisors (10228822429).

51144112115 is a wasteful number, since it uses less digits than its factorization.

51144112115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10228822428.

The product of its digits is 800, while the sum is 26.

The spelling of 51144112115 in words is "fifty-one billion, one hundred forty-four million, one hundred twelve thousand, one hundred fifteen".