423991909295 has 4 divisors (see below), whose sum is σ = 508790291160. Its totient is φ = 339193527432.

The previous prime is 423991909261. The next prime is 423991909373. The reversal of 423991909295 is 592909199324.

It is a happy number.

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 423991909295 - 2²⁴ = 423975132079 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42399190925 + ... + 42399190934.

It is an arithmetic number, because the mean of its divisors is an integer number (127197572790).

Almost surely, 2^423991909295 is an apocalyptic number.

423991909295 is a deficient number, since it is larger than the sum of its proper divisors (84798381865).

423991909295 is an equidigital number, since it uses as much as digits as its factorization.

423991909295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84798381864.

The product of its (nonzero) digits is 14171760, while the sum is 62.

The spelling of 423991909295 in words is "four hundred twenty-three billion, nine hundred ninety-one million, nine hundred nine thousand, two hundred ninety-five".