423394676899 has 4 divisors (see below), whose sum is σ = 441803141136. Its totient is φ = 404986212664.

The previous prime is 423394676827. The next prime is 423394676909. The reversal of 423394676899 is 998676493324.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 423394676899 - 2²¹ = 423392579747 is a prime.

It is a super-3 number, since 3×423394676899³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423394676599) 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, 9204232084 + ... + 9204232129.

It is an arithmetic number, because the mean of its divisors is an integer number (110450785284).

Almost surely, 2^423394676899 is an apocalyptic number.

423394676899 is a deficient number, since it is larger than the sum of its proper divisors (18408464237).

423394676899 is a wasteful number, since it uses less digits than its factorization.

423394676899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18408464236.

The product of its digits is 423263232, while the sum is 70.

The spelling of 423394676899 in words is "four hundred twenty-three billion, three hundred ninety-four million, six hundred seventy-six thousand, eight hundred ninety-nine".