406531444597 has 2 divisors, whose sum is σ = 406531444598. Its totient is φ = 406531444596.

The previous prime is 406531444591. The next prime is 406531444687. The reversal of 406531444597 is 795444135604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 252847059921 + 153684384676 = 502839^2 + 392026^2 .

It is a cyclic number.

It is not a de Polignac number, because 406531444597 - 2³ = 406531444589 is a prime.

It is a super-2 number, since 2×406531444597² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406531444591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203265722298 + 203265722299.

It is an arithmetic number, because the mean of its divisors is an integer number (203265722299).

Almost surely, 2^406531444597 is an apocalyptic number.

It is an amenable number.

406531444597 is a deficient number, since it is larger than the sum of its proper divisors (1).

406531444597 is an equidigital number, since it uses as much as digits as its factorization.

406531444597 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7257600, while the sum is 52.

The spelling of 406531444597 in words is "four hundred six billion, five hundred thirty-one million, four hundred forty-four thousand, five hundred ninety-seven".