321145402669 has 8 divisors (see below), whose sum is σ = 395255880320. Its totient is φ = 254093065776.

The previous prime is 321145402667. The next prime is 321145402709. The reversal of 321145402669 is 966204541123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 321145402669 - 2¹ = 321145402667 is a prime.

It is a super-2 number, since 2×321145402669² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321145402667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1764535089 + ... + 1764535270.

It is an arithmetic number, because the mean of its divisors is an integer number (49406985040).

Almost surely, 2^321145402669 is an apocalyptic number.

It is an amenable number.

321145402669 is a deficient number, since it is larger than the sum of its proper divisors (74110477651).

321145402669 is a wasteful number, since it uses less digits than its factorization.

321145402669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3529070379.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 321145402669 in words is "three hundred twenty-one billion, one hundred forty-five million, four hundred two thousand, six hundred sixty-nine".