321085996218 has 32 divisors (see below), whose sum is σ = 768410932800. Its totient is φ = 98795690928.

The previous prime is 321085996199. The next prime is 321085996219. The reversal of 321085996218 is 812699580123.

321085996218 is a `hidden beast` number, since 3 + 2 + 1 + 0 + 8 + 5 + 9 + 9 + 621 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (321085996219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228693028 + ... + 228694431.

It is an arithmetic number, because the mean of its divisors is an integer number (24012841650).

Almost surely, 2^321085996218 is an apocalyptic number.

321085996218 is an abundant number, since it is smaller than the sum of its proper divisors (447324936582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321085996218 is a wasteful number, since it uses less digits than its factorization.

321085996218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457387483 (or 457387477 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The spelling of 321085996218 in words is "three hundred twenty-one billion, eighty-five million, nine hundred ninety-six thousand, two hundred eighteen".