423899686543 has 8 divisors (see below), whose sum is σ = 454516418880. Its totient is φ = 393914227200.

The previous prime is 423899686541. The next prime is 423899686579. The reversal of 423899686543 is 345686998324.

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 423899686543 - 2¹ = 423899686541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423899686541) 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, 157816858 + ... + 157819543.

It is an arithmetic number, because the mean of its divisors is an integer number (56814552360).

Almost surely, 2^423899686543 is an apocalyptic number.

423899686543 is a deficient number, since it is larger than the sum of its proper divisors (30616732337).

423899686543 is a wasteful number, since it uses less digits than its factorization.

423899686543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315636497.

The product of its digits is 268738560, while the sum is 67.

The spelling of 423899686543 in words is "four hundred twenty-three billion, eight hundred ninety-nine million, six hundred eighty-six thousand, five hundred forty-three".