423654782880 has 192 divisors, whose sum is σ = 1527472574208. Its totient is φ = 96688373760.

The previous prime is 423654782851. The next prime is 423654782891. The reversal of 423654782880 is 88287456324.

It is a self number, because there is not a number n which added to its sum of digits gives 423654782880.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2125584 + ... + 2316336.

It is an arithmetic number, because the mean of its divisors is an integer number (7955586324).

Almost surely, 2^423654782880 is an apocalyptic number.

423654782880 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 423654782880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (763736287104).

423654782880 is an abundant number, since it is smaller than the sum of its proper divisors (1103817791328).

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

423654782880 is a wasteful number, since it uses less digits than its factorization.

423654782880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191439 (or 191431 counting only the distinct ones).

The product of its (nonzero) digits is 20643840, while the sum is 57.

The spelling of 423654782880 in words is "four hundred twenty-three billion, six hundred fifty-four million, seven hundred eighty-two thousand, eight hundred eighty".