423021604456 has 32 divisors (see below), whose sum is σ = 902891966400. Its totient is φ = 183922435840.

The previous prime is 423021604399. The next prime is 423021604501. The reversal of 423021604456 is 654406120324.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104499361 + ... + 104503408.

It is an arithmetic number, because the mean of its divisors is an integer number (28215373950).

Almost surely, 2^423021604456 is an apocalyptic number.

423021604456 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

423021604456 is an abundant number, since it is smaller than the sum of its proper divisors (479870361944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423021604456 is a wasteful number, since it uses less digits than its factorization.

423021604456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209002809 (or 209002805 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 423021604456 in words is "four hundred twenty-three billion, twenty-one million, six hundred four thousand, four hundred fifty-six".