51343253587771 has 2 divisors, whose sum is σ = 51343253587772. Its totient is φ = 51343253587770.

The previous prime is 51343253587751. The next prime is 51343253587807. The reversal of 51343253587771 is 17778535234315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51343253587771 - 2⁴⁵ = 16158881498939 is a prime.

It is a super-2 number, since 2×51343253587771² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51343253587711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25671626793885 + 25671626793886.

It is an arithmetic number, because the mean of its divisors is an integer number (25671626793886).

Almost surely, 2^{51343253587771} is an apocalyptic number.

51343253587771 is a deficient number, since it is larger than the sum of its proper divisors (1).

51343253587771 is an equidigital number, since it uses as much as digits as its factorization.

51343253587771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 74088000, while the sum is 61.

The spelling of 51343253587771 in words is "fifty-one trillion, three hundred forty-three billion, two hundred fifty-three million, five hundred eighty-seven thousand, seven hundred seventy-one".