423708955557888 has 1920 divisors, whose sum is σ = 1648476250767360. Its totient is φ = 93130850304000.

The previous prime is 423708955557859. The next prime is 423708955557893. The reversal of 423708955557888 is 888755559807324.

It is a Harshad number since it is a multiple of its sum of digits (84).

It is a self number, because there is not a number n which added to its sum of digits gives 423708955557888.

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 127 ways as a sum of consecutive naturals, for example, 28979471218 + ... + 28979485838.

It is an arithmetic number, because the mean of its divisors is an integer number (858581380608).

Almost surely, 2^{423708955557888} is an apocalyptic number.

423708955557888 is a gapful number since it is divisible by the number (48) 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 423708955557888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (824238125383680).

423708955557888 is an abundant number, since it is smaller than the sum of its proper divisors (1224767295209472).

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

423708955557888 is a wasteful number, since it uses less digits than its factorization.

423708955557888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14733 (or 14707 counting only the distinct ones).

The product of its (nonzero) digits is 27095040000, while the sum is 84.

The spelling of 423708955557888 in words is "four hundred twenty-three trillion, seven hundred eight billion, nine hundred fifty-five million, five hundred fifty-seven thousand, eight hundred eighty-eight".