323211086667778 has 4 divisors (see below), whose sum is σ = 484816630001670. Its totient is φ = 161605543333888.

The previous prime is 323211086667773. The next prime is 323211086667779. The reversal of 323211086667778 is 877766680112323.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 310697838384129 + 12513248283649 = 17626623^2 + 3537407^2 .

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (323211086667773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80802771666943 + ... + 80802771666946.

Almost surely, 2^{323211086667778} is an apocalyptic number.

323211086667778 is a deficient number, since it is larger than the sum of its proper divisors (161605543333892).

323211086667778 is a wasteful number, since it uses less digits than its factorization.

323211086667778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161605543333891.

The product of its (nonzero) digits is 170698752, while the sum is 67.

The spelling of 323211086667778 in words is "three hundred twenty-three trillion, two hundred eleven billion, eighty-six million, six hundred sixty-seven thousand, seven hundred seventy-eight".