51542134143 has 16 divisors (see below), whose sum is σ = 70413235200. Its totient is φ = 33516566720.

The previous prime is 51542134117. The next prime is 51542134151. The reversal of 51542134143 is 34143124515.

It is a cyclic number.

It is not a de Polignac number, because 51542134143 - 2⁸ = 51542133887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51542124143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 609628 + ... + 689006.

It is an arithmetic number, because the mean of its divisors is an integer number (4400827200).

Almost surely, 2^51542134143 is an apocalyptic number.

51542134143 is a deficient number, since it is larger than the sum of its proper divisors (18871101057).

51542134143 is a wasteful number, since it uses less digits than its factorization.

51542134143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84702.

The product of its digits is 28800, while the sum is 33.

Adding to 51542134143 its reverse (34143124515), we get a palindrome (85685258658).

The spelling of 51542134143 in words is "fifty-one billion, five hundred forty-two million, one hundred thirty-four thousand, one hundred forty-three".