326206129481 has 2 divisors, whose sum is σ = 326206129482. Its totient is φ = 326206129480.

The previous prime is 326206129471. The next prime is 326206129489. The reversal of 326206129481 is 184921602623.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 289380519481 + 36825610000 = 537941^2 + 191900^2 .

It is a cyclic number.

It is not a de Polignac number, because 326206129481 - 2¹⁴ = 326206113097 is a prime.

It is a super-2 number, since 2×326206129481² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (326206129489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163103064740 + 163103064741.

It is an arithmetic number, because the mean of its divisors is an integer number (163103064741).

Almost surely, 2^326206129481 is an apocalyptic number.

It is an amenable number.

326206129481 is a deficient number, since it is larger than the sum of its proper divisors (1).

326206129481 is an equidigital number, since it uses as much as digits as its factorization.

326206129481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 326206129481 in words is "three hundred twenty-six billion, two hundred six million, one hundred twenty-nine thousand, four hundred eighty-one".