526409822449 has 12 divisors (see below), whose sum is σ = 612366099300. Its totient is φ = 451199712768.

The previous prime is 526409822443. The next prime is 526409822461. The reversal of 526409822449 is 944228904625.

It can be written as a sum of positive squares in 2 ways, for example, as 303490810000 + 222919012449 = 550900^2 + 472143^2 .

It is not a de Polignac number, because 526409822449 - 2⁷ = 526409822321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 526409822449.

It is not an unprimeable number, because it can be changed into a prime (526409822443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5015097 + ... + 5118985.

It is an arithmetic number, because the mean of its divisors is an integer number (51030508275).

Almost surely, 2^526409822449 is an apocalyptic number.

It is an amenable number.

526409822449 is a deficient number, since it is larger than the sum of its proper divisors (85956276851).

526409822449 is a wasteful number, since it uses less digits than its factorization.

526409822449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207312 (or 207305 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 55.

The spelling of 526409822449 in words is "five hundred twenty-six billion, four hundred nine million, eight hundred twenty-two thousand, four hundred forty-nine".