526368426889 has 2 divisors, whose sum is σ = 526368426890. Its totient is φ = 526368426888.

The previous prime is 526368426869. The next prime is 526368426949. The reversal of 526368426889 is 988624863625.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313101798025 + 213266628864 = 559555^2 + 461808^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-526368426889 is a prime.

It is not a weakly prime, because it can be changed into another prime (526368426869) 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, 263184213444 + 263184213445.

It is an arithmetic number, because the mean of its divisors is an integer number (263184213445).

Almost surely, 2^526368426889 is an apocalyptic number.

It is an amenable number.

526368426889 is a deficient number, since it is larger than the sum of its proper divisors (1).

526368426889 is an equidigital number, since it uses as much as digits as its factorization.

526368426889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 238878720, while the sum is 67.

The spelling of 526368426889 in words is "five hundred twenty-six billion, three hundred sixty-eight million, four hundred twenty-six thousand, eight hundred eighty-nine".