51467591793977 has 2 divisors, whose sum is σ = 51467591793978. Its totient is φ = 51467591793976.

The previous prime is 51467591793923. The next prime is 51467591794081. The reversal of 51467591793977 is 77939719576415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27913692122281 + 23553899671696 = 5283341^2 + 4853236^2 .

It is a cyclic number.

It is not a de Polignac number, because 51467591793977 - 2¹⁸ = 51467591531833 is a prime.

It is not a weakly prime, because it can be changed into another prime (51467591790977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25733795896988 + 25733795896989.

It is an arithmetic number, because the mean of its divisors is an integer number (25733795896989).

Almost surely, 2^{51467591793977} is an apocalyptic number.

It is an amenable number.

51467591793977 is a deficient number, since it is larger than the sum of its proper divisors (1).

51467591793977 is an equidigital number, since it uses as much as digits as its factorization.

51467591793977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3150592200, while the sum is 80.

The spelling of 51467591793977 in words is "fifty-one trillion, four hundred sixty-seven billion, five hundred ninety-one million, seven hundred ninety-three thousand, nine hundred seventy-seven".