51044341591 has 2 divisors, whose sum is σ = 51044341592. Its totient is φ = 51044341590.

The previous prime is 51044341511. The next prime is 51044341631. The reversal of 51044341591 is 19514344015.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51044341591 - 2¹⁹ = 51043817303 is a prime.

It is a super-2 number, since 2×51044341591² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51044341591.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51044341511) 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 as a sum of consecutive naturals, namely, 25522170795 + 25522170796.

It is an arithmetic number, because the mean of its divisors is an integer number (25522170796).

Almost surely, 2^51044341591 is an apocalyptic number.

51044341591 is a deficient number, since it is larger than the sum of its proper divisors (1).

51044341591 is an equidigital number, since it uses as much as digits as its factorization.

51044341591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 51044341591 in words is "fifty-one billion, forty-four million, three hundred forty-one thousand, five hundred ninety-one".