423997695863 has 8 divisors (see below), whose sum is σ = 484582230432. Its totient is φ = 363416520096.

The previous prime is 423997695859. The next prime is 423997695871. The reversal of 423997695863 is 368596799324.

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

It is not a de Polignac number, because 423997695863 - 2² = 423997695859 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 (423997695763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 563120 + ... + 1079397.

It is an arithmetic number, because the mean of its divisors is an integer number (60572778804).

Almost surely, 2^423997695863 is an apocalyptic number.

423997695863 is a deficient number, since it is larger than the sum of its proper divisors (60584534569).

423997695863 is a wasteful number, since it uses less digits than its factorization.

423997695863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679401.

The product of its digits is 529079040, while the sum is 71.

The spelling of 423997695863 in words is "four hundred twenty-three billion, nine hundred ninety-seven million, six hundred ninety-five thousand, eight hundred sixty-three".