51092138159 has 4 divisors (see below), whose sum is σ = 52740271680. Its totient is φ = 49444004640.

The previous prime is 51092138129. The next prime is 51092138173. The reversal of 51092138159 is 95183129015.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51092138159 is a prime.

It is a super-2 number, since 2×51092138159² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51092138129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 824066714 + ... + 824066775.

It is an arithmetic number, because the mean of its divisors is an integer number (13185067920).

Almost surely, 2^51092138159 is an apocalyptic number.

51092138159 is a deficient number, since it is larger than the sum of its proper divisors (1648133521).

51092138159 is a wasteful number, since it uses less digits than its factorization.

51092138159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648133520.

The product of its (nonzero) digits is 97200, while the sum is 44.

The spelling of 51092138159 in words is "fifty-one billion, ninety-two million, one hundred thirty-eight thousand, one hundred fifty-nine".