51761162543 has 16 divisors (see below), whose sum is σ = 53647954944. Its totient is φ = 49901080320.

The previous prime is 51761162507. The next prime is 51761162591. The reversal of 51761162543 is 34526116715.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 51761162543 - 2¹² = 51761158447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51761162543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51761162143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3851171 + ... + 3864587.

It is an arithmetic number, because the mean of its divisors is an integer number (3352997184).

Almost surely, 2^51761162543 is an apocalyptic number.

51761162543 is a deficient number, since it is larger than the sum of its proper divisors (1886792401).

51761162543 is a wasteful number, since it uses less digits than its factorization.

51761162543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14402.

The product of its digits is 151200, while the sum is 41.

The spelling of 51761162543 in words is "fifty-one billion, seven hundred sixty-one million, one hundred sixty-two thousand, five hundred forty-three".