326420524226393 has 2 divisors, whose sum is σ = 326420524226394. Its totient is φ = 326420524226392.

The previous prime is 326420524226213. The next prime is 326420524226411. The reversal of 326420524226393 is 393622425024623.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 298128465361609 + 28292058864784 = 17266397^2 + 5319028^2 .

It is an emirp because it is prime and its reverse (393622425024623) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-326420524226393 is a prime.

It is a super-2 number, since 2×326420524226393² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (326420524276393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163210262113196 + 163210262113197.

It is an arithmetic number, because the mean of its divisors is an integer number (163210262113197).

Almost surely, 2^{326420524226393} is an apocalyptic number.

It is an amenable number.

326420524226393 is a deficient number, since it is larger than the sum of its proper divisors (1).

326420524226393 is an equidigital number, since it uses as much as digits as its factorization.

326420524226393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22394880, while the sum is 53.

The spelling of 326420524226393 in words is "three hundred twenty-six trillion, four hundred twenty billion, five hundred twenty-four million, two hundred twenty-six thousand, three hundred ninety-three".