51305842143 has 24 divisors (see below), whose sum is σ = 75027283968. Its totient is φ = 33782231952.

The previous prime is 51305842129. The next prime is 51305842151. The reversal of 51305842143 is 34124850315.

51305842143 is a `hidden beast` number, since 5 + 1 + 30 + 584 + 2 + 1 + 43 = 666.

It is not a de Polignac number, because 51305842143 - 2²⁵ = 51272287711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51305842098 and 51305842107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51305842103) 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 23 ways as a sum of consecutive naturals, for example, 154246 + ... + 355532.

It is an arithmetic number, because the mean of its divisors is an integer number (3126136832).

Almost surely, 2^51305842143 is an apocalyptic number.

51305842143 is a deficient number, since it is larger than the sum of its proper divisors (23721441825).

51305842143 is a wasteful number, since it uses less digits than its factorization.

51305842143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201643 (or 201640 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 51305842143 in words is "fifty-one billion, three hundred five million, eight hundred forty-two thousand, one hundred forty-three".