423371551680 has 672 divisors, whose sum is σ = 1882818362880. Its totient is φ = 87972065280.

The previous prime is 423371551679. The next prime is 423371551697. The reversal of 423371551680 is 86155173324.

It is a happy number.

423371551680 is a `hidden beast` number, since 4 + 2 + 3 + 37 + 1 + 551 + 68 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5952166 + ... + 6022874.

It is an arithmetic number, because the mean of its divisors is an integer number (2801813040).

Almost surely, 2^423371551680 is an apocalyptic number.

423371551680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423371551680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (941409181440).

423371551680 is an abundant number, since it is smaller than the sum of its proper divisors (1459446811200).

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

423371551680 is a wasteful number, since it uses less digits than its factorization.

423371551680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70759 (or 70737 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 423371551680 in words is "four hundred twenty-three billion, three hundred seventy-one million, five hundred fifty-one thousand, six hundred eighty".