51605045343 has 24 divisors (see below), whose sum is σ = 75328649136. Its totient is φ = 34040112000.

The previous prime is 51605045287. The next prime is 51605045377. The reversal of 51605045343 is 34354050615.

51605045343 is a `hidden beast` number, since 5 + 1 + 60 + 504 + 53 + 43 = 666.

It is not a de Polignac number, because 51605045343 - 2¹⁶ = 51604979807 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51605045298 and 51605045307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51605045143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1409971 + ... + 1446107.

It is an arithmetic number, because the mean of its divisors is an integer number (3138693714).

Almost surely, 2^51605045343 is an apocalyptic number.

51605045343 is a deficient number, since it is larger than the sum of its proper divisors (23723603793).

51605045343 is a wasteful number, since it uses less digits than its factorization.

51605045343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37815 (or 37812 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 51605045343 its reverse (34354050615), we get a palindrome (85959095958).

The spelling of 51605045343 in words is "fifty-one billion, six hundred five million, forty-five thousand, three hundred forty-three".