423623908793 has 4 divisors (see below), whose sum is σ = 423722499060. Its totient is φ = 423525318528.

The previous prime is 423623908777. The next prime is 423623908831. The reversal of 423623908793 is 397809326324.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 294906560809 + 128717347984 = 543053^2 + 358772^2 .

It is a cyclic number.

It is not a de Polignac number, because 423623908793 - 2⁴ = 423623908777 is a prime.

It is a super-2 number, since 2×423623908793² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423623908723) 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 3 ways as a sum of consecutive naturals, for example, 49288688 + ... + 49297281.

It is an arithmetic number, because the mean of its divisors is an integer number (105930624765).

Almost surely, 2^423623908793 is an apocalyptic number.

It is an amenable number.

423623908793 is a deficient number, since it is larger than the sum of its proper divisors (98590267).

423623908793 is an equidigital number, since it uses as much as digits as its factorization.

423623908793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98590266.

The product of its (nonzero) digits is 11757312, while the sum is 56.

The spelling of 423623908793 in words is "four hundred twenty-three billion, six hundred twenty-three million, nine hundred eight thousand, seven hundred ninety-three".