423644429469697 has 16 divisors (see below), whose sum is σ = 459007384347072. Its totient is φ = 389442216683520.

The previous prime is 423644429469659. The next prime is 423644429469707. The reversal of 423644429469697 is 796964924446324.

It is a cyclic number.

It is not a de Polignac number, because 423644429469697 - 2¹⁵ = 423644429436929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423644429469097) 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, 23817922 + ... + 37610932.

It is an arithmetic number, because the mean of its divisors is an integer number (28687961521692).

Almost surely, 2^{423644429469697} is an apocalyptic number.

It is an amenable number.

423644429469697 is a deficient number, since it is larger than the sum of its proper divisors (35362954877375).

423644429469697 is a wasteful number, since it uses less digits than its factorization.

423644429469697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13835088.

The product of its digits is 13544423424, while the sum is 79.

The spelling of 423644429469697 in words is "four hundred twenty-three trillion, six hundred forty-four billion, four hundred twenty-nine million, four hundred sixty-nine thousand, six hundred ninety-seven".