423851351929 has 4 divisors (see below), whose sum is σ = 446159317840. Its totient is φ = 401543386020.

The previous prime is 423851351897. The next prime is 423851351947. The reversal of 423851351929 is 929153158324.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 423851351929 - 2⁵ = 423851351897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (423851351129) 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, 11153982927 + ... + 11153982964.

It is an arithmetic number, because the mean of its divisors is an integer number (111539829460).

Almost surely, 2^423851351929 is an apocalyptic number.

It is an amenable number.

423851351929 is a deficient number, since it is larger than the sum of its proper divisors (22307965911).

423851351929 is a wasteful number, since it uses less digits than its factorization.

423851351929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22307965910.

The product of its digits is 2332800, while the sum is 52.

The spelling of 423851351929 in words is "four hundred twenty-three billion, eight hundred fifty-one million, three hundred fifty-one thousand, nine hundred twenty-nine".