321923354469 has 4 divisors (see below), whose sum is σ = 429231139296. Its totient is φ = 214615569644.

The previous prime is 321923354411. The next prime is 321923354479. The reversal of 321923354469 is 964453329123.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 964453329123 = 3 ⋅321484443041.

It is a cyclic number.

It is not a de Polignac number, because 321923354469 - 2¹⁶ = 321923288933 is a prime.

It is a super-2 number, since 2×321923354469² (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 (321923354479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53653892409 + ... + 53653892414.

It is an arithmetic number, because the mean of its divisors is an integer number (107307784824).

Almost surely, 2^321923354469 is an apocalyptic number.

It is an amenable number.

321923354469 is a deficient number, since it is larger than the sum of its proper divisors (107307784827).

321923354469 is a wasteful number, since it uses less digits than its factorization.

321923354469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107307784826.

The product of its digits is 4199040, while the sum is 51.

The spelling of 321923354469 in words is "three hundred twenty-one billion, nine hundred twenty-three million, three hundred fifty-four thousand, four hundred sixty-nine".