421888453120 has 160 divisors (see below), whose sum is σ = 1021657038336. Its totient is φ = 167075020800.

The previous prime is 421888453081. The next prime is 421888453139. The reversal of 421888453120 is 21354888124.

It is a tau number, because it is divible by the number of its divisors (160).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151158925 + ... + 151161715.

Almost surely, 2^421888453120 is an apocalyptic number.

421888453120 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 421888453120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (510828519168).

421888453120 is an abundant number, since it is smaller than the sum of its proper divisors (599768585216).

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

421888453120 is a wasteful number, since it uses less digits than its factorization.

421888453120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3382 (or 3366 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 46.

The spelling of 421888453120 in words is "four hundred twenty-one billion, eight hundred eighty-eight million, four hundred fifty-three thousand, one hundred twenty".