426300625166221 has 12 divisors (see below), whose sum is σ = 466802160543540. Its totient is φ = 389086828141440.

The previous prime is 426300625166197. The next prime is 426300625166239. The reversal of 426300625166221 is 122661526003624.

It can be written as a sum of positive squares in 6 ways, for example, as 248844630536100 + 177455994630121 = 15774810^2 + 13321261^2 .

It is not a de Polignac number, because 426300625166221 - 2⁴¹ = 424101601910669 is a prime.

It is a super-2 number, since 2×426300625166221² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426300625166321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14171270950 + ... + 14171301031.

It is an arithmetic number, because the mean of its divisors is an integer number (38900180045295).

Almost surely, 2^{426300625166221} is an apocalyptic number.

It is an amenable number.

426300625166221 is a deficient number, since it is larger than the sum of its proper divisors (40501535377319).

426300625166221 is a wasteful number, since it uses less digits than its factorization.

426300625166221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28342572096 (or 28342572083 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 46.

The spelling of 426300625166221 in words is "four hundred twenty-six trillion, three hundred billion, six hundred twenty-five million, one hundred sixty-six thousand, two hundred twenty-one".