321627432793 has 2 divisors, whose sum is σ = 321627432794. Its totient is φ = 321627432792.

The previous prime is 321627432773. The next prime is 321627432871. The reversal of 321627432793 is 397234726123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162129438409 + 159497994384 = 402653^2 + 399372^2 .

It is a cyclic number.

It is not a de Polignac number, because 321627432793 - 2⁹ = 321627432281 is a prime.

It is not a weakly prime, because it can be changed into another prime (321627432773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160813716396 + 160813716397.

It is an arithmetic number, because the mean of its divisors is an integer number (160813716397).

Almost surely, 2^321627432793 is an apocalyptic number.

It is an amenable number.

321627432793 is a deficient number, since it is larger than the sum of its proper divisors (1).

321627432793 is an equidigital number, since it uses as much as digits as its factorization.

321627432793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 49.

The spelling of 321627432793 in words is "three hundred twenty-one billion, six hundred twenty-seven million, four hundred thirty-two thousand, seven hundred ninety-three".