426654116197 has 2 divisors, whose sum is σ = 426654116198. Its totient is φ = 426654116196.

The previous prime is 426654116183. The next prime is 426654116209. The reversal of 426654116197 is 791611456624.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 395287580961 + 31366535236 = 628719^2 + 177106^2 .

It is a cyclic number.

It is not a de Polignac number, because 426654116197 - 2³¹ = 424506632549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426654116117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213327058098 + 213327058099.

It is an arithmetic number, because the mean of its divisors is an integer number (213327058099).

Almost surely, 2^426654116197 is an apocalyptic number.

It is an amenable number.

426654116197 is a deficient number, since it is larger than the sum of its proper divisors (1).

426654116197 is an equidigital number, since it uses as much as digits as its factorization.

426654116197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 52.

The spelling of 426654116197 in words is "four hundred twenty-six billion, six hundred fifty-four million, one hundred sixteen thousand, one hundred ninety-seven".