321697788052 has 12 divisors (see below), whose sum is σ = 563045777280. Its totient is φ = 160827565976.

The previous prime is 321697788047. The next prime is 321697788059. The reversal of 321697788052 is 250887796123.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321697788059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5298052 + ... + 5358427.

It is an arithmetic number, because the mean of its divisors is an integer number (46920481440).

Almost surely, 2^321697788052 is an apocalyptic number.

It is an amenable number.

321697788052 is a deficient number, since it is larger than the sum of its proper divisors (241347989228).

321697788052 is a wasteful number, since it uses less digits than its factorization.

321697788052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10664030 (or 10664028 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 58.

The spelling of 321697788052 in words is "three hundred twenty-one billion, six hundred ninety-seven million, seven hundred eighty-eight thousand, fifty-two".