52171277779 has 2 divisors, whose sum is σ = 52171277780. Its totient is φ = 52171277778.

The previous prime is 52171277663. The next prime is 52171277797. The reversal of 52171277779 is 97777217125.

Together with next prime (52171277797) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52171277779 - 2¹¹ = 52171275731 is a prime.

It is not a weakly prime, because it can be changed into another prime (52171277579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26085638889 + 26085638890.

It is an arithmetic number, because the mean of its divisors is an integer number (26085638890).

Almost surely, 2^52171277779 is an apocalyptic number.

52171277779 is a deficient number, since it is larger than the sum of its proper divisors (1).

52171277779 is an equidigital number, since it uses as much as digits as its factorization.

52171277779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3025260, while the sum is 55.

The spelling of 52171277779 in words is "fifty-two billion, one hundred seventy-one million, two hundred seventy-seven thousand, seven hundred seventy-nine".