52722012779 has 2 divisors, whose sum is σ = 52722012780. Its totient is φ = 52722012778.

The previous prime is 52722012743. The next prime is 52722012781. The reversal of 52722012779 is 97721022725.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52722012779 is a prime.

It is a super-2 number, since 2×52722012779² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 52722012781, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52722012719) 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, 26361006389 + 26361006390.

It is an arithmetic number, because the mean of its divisors is an integer number (26361006390).

Almost surely, 2^52722012779 is an apocalyptic number.

52722012779 is a deficient number, since it is larger than the sum of its proper divisors (1).

52722012779 is an equidigital number, since it uses as much as digits as its factorization.

52722012779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 246960, while the sum is 44.

The spelling of 52722012779 in words is "fifty-two billion, seven hundred twenty-two million, twelve thousand, seven hundred seventy-nine".