51787434376265 has 32 divisors (see below), whose sum is σ = 71257117643520. Its totient is φ = 35394232034304.

The previous prime is 51787434376243. The next prime is 51787434376273. The reversal of 51787434376265 is 56267343478715.

51787434376265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 51787434376265 - 2⁶ = 51787434376201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51787434376195 and 51787434376204.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 106777442 + ... + 107261348.

It is an arithmetic number, because the mean of its divisors is an integer number (2226784926360).

Almost surely, 2^{51787434376265} is an apocalyptic number.

It is an amenable number.

51787434376265 is a deficient number, since it is larger than the sum of its proper divisors (19469683267255).

51787434376265 is a wasteful number, since it uses less digits than its factorization.

51787434376265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494001.

The product of its digits is 711244800, while the sum is 68.

The spelling of 51787434376265 in words is "fifty-one trillion, seven hundred eighty-seven billion, four hundred thirty-four million, three hundred seventy-six thousand, two hundred sixty-five".