52121754779 has 2 divisors, whose sum is σ = 52121754780. Its totient is φ = 52121754778.

The previous prime is 52121754719. The next prime is 52121754851. The reversal of 52121754779 is 97745712125.

52121754779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52121754779 - 2¹² = 52121750683 is a prime.

It is not a weakly prime, because it can be changed into another prime (52121754709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26060877389 + 26060877390.

It is an arithmetic number, because the mean of its divisors is an integer number (26060877390).

Almost surely, 2^52121754779 is an apocalyptic number.

52121754779 is a deficient number, since it is larger than the sum of its proper divisors (1).

52121754779 is an equidigital number, since it uses as much as digits as its factorization.

52121754779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1234800, while the sum is 50.

The spelling of 52121754779 in words is "fifty-two billion, one hundred twenty-one million, seven hundred fifty-four thousand, seven hundred seventy-nine".