326143083784729 has 2 divisors, whose sum is σ = 326143083784730. Its totient is φ = 326143083784728.

The previous prime is 326143083784703. The next prime is 326143083784799. The reversal of 326143083784729 is 927487380341623.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 256216109589504 + 69926974195225 = 16006752^2 + 8362235^2 .

It is a cyclic number.

It is not a de Polignac number, because 326143083784729 - 2⁷ = 326143083784601 is a prime.

It is a super-2 number, since 2×326143083784729² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (326143083784799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163071541892364 + 163071541892365.

It is an arithmetic number, because the mean of its divisors is an integer number (163071541892365).

Almost surely, 2^{326143083784729} is an apocalyptic number.

It is an amenable number.

326143083784729 is a deficient number, since it is larger than the sum of its proper divisors (1).

326143083784729 is an equidigital number, since it uses as much as digits as its factorization.

326143083784729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 292626432, while the sum is 67.

The spelling of 326143083784729 in words is "three hundred twenty-six trillion, one hundred forty-three billion, eighty-three million, seven hundred eighty-four thousand, seven hundred twenty-nine".