423430818247 has 4 divisors (see below), whose sum is σ = 448338513456. Its totient is φ = 398523123040.

The previous prime is 423430818229. The next prime is 423430818259. The reversal of 423430818247 is 742818034324.

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 423430818247 - 2³¹ = 421283334599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423430818197 and 423430818206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423430818047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12453847579 + ... + 12453847612.

It is an arithmetic number, because the mean of its divisors is an integer number (112084628364).

Almost surely, 2^423430818247 is an apocalyptic number.

423430818247 is a deficient number, since it is larger than the sum of its proper divisors (24907695209).

423430818247 is a wasteful number, since it uses less digits than its factorization.

423430818247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24907695208.

The product of its (nonzero) digits is 1032192, while the sum is 46.

The spelling of 423430818247 in words is "four hundred twenty-three billion, four hundred thirty million, eight hundred eighteen thousand, two hundred forty-seven".