51277324543 has 4 divisors (see below), whose sum is σ = 51388075168. Its totient is φ = 51166573920.

The previous prime is 51277324541. The next prime is 51277324597. The reversal of 51277324543 is 34542377215.

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 51277324543 - 2¹ = 51277324541 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 51277324543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51277324541) by changing a digit.

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, 55374618 + ... + 55375543.

It is an arithmetic number, because the mean of its divisors is an integer number (12847018792).

Almost surely, 2^51277324543 is an apocalyptic number.

51277324543 is a deficient number, since it is larger than the sum of its proper divisors (110750625).

51277324543 is a wasteful number, since it uses less digits than its factorization.

51277324543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110750624.

The product of its digits is 705600, while the sum is 43.

The spelling of 51277324543 in words is "fifty-one billion, two hundred seventy-seven million, three hundred twenty-four thousand, five hundred forty-three".