51886272791 has 2 divisors, whose sum is σ = 51886272792. Its totient is φ = 51886272790.

The previous prime is 51886272749. The next prime is 51886272829. The reversal of 51886272791 is 19727268815.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51886272791 - 2¹⁸ = 51886010647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51886272091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25943136395 + 25943136396.

It is an arithmetic number, because the mean of its divisors is an integer number (25943136396).

Almost surely, 2^51886272791 is an apocalyptic number.

51886272791 is a deficient number, since it is larger than the sum of its proper divisors (1).

51886272791 is an equidigital number, since it uses as much as digits as its factorization.

51886272791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3386880, while the sum is 56.

The spelling of 51886272791 in words is "fifty-one billion, eight hundred eighty-six million, two hundred seventy-two thousand, seven hundred ninety-one".