322420351264861 has 2 divisors, whose sum is σ = 322420351264862. Its totient is φ = 322420351264860.

The previous prime is 322420351264829. The next prime is 322420351264871. The reversal of 322420351264861 is 168462153024223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228007161208836 + 94413190056025 = 15099906^2 + 9716645^2 .

It is a cyclic number.

It is not a de Polignac number, because 322420351264861 - 2⁵ = 322420351264829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (322420351264871) 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, 161210175632430 + 161210175632431.

It is an arithmetic number, because the mean of its divisors is an integer number (161210175632431).

Almost surely, 2^{322420351264861} is an apocalyptic number.

It is an amenable number.

322420351264861 is a deficient number, since it is larger than the sum of its proper divisors (1).

322420351264861 is an equidigital number, since it uses as much as digits as its factorization.

322420351264861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3317760, while the sum is 49.

The spelling of 322420351264861 in words is "three hundred twenty-two trillion, four hundred twenty billion, three hundred fifty-one million, two hundred sixty-four thousand, eight hundred sixty-one".