426521205112265 has 16 divisors (see below), whose sum is σ = 512363305146000. Its totient is φ = 340858446077952.

The previous prime is 426521205112207. The next prime is 426521205112309. The reversal of 426521205112265 is 562211502125624.

It can be written as a sum of positive squares in 8 ways, for example, as 70098069706681 + 356423135405584 = 8372459^2 + 18879172^2 .

It is a cyclic number.

It is not a de Polignac number, because 426521205112265 - 2²² = 426521200917961 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59133161 + ... + 65952809.

It is an arithmetic number, because the mean of its divisors is an integer number (32022706571625).

Almost surely, 2^{426521205112265} is an apocalyptic number.

It is an amenable number.

426521205112265 is a deficient number, since it is larger than the sum of its proper divisors (85842100033735).

426521205112265 is a wasteful number, since it uses less digits than its factorization.

426521205112265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6832796.

The product of its (nonzero) digits is 576000, while the sum is 44.

Adding to 426521205112265 its reverse (562211502125624), we get a palindrome (988732707237889).

The spelling of 426521205112265 in words is "four hundred twenty-six trillion, five hundred twenty-one billion, two hundred five million, one hundred twelve thousand, two hundred sixty-five".