128023437287424 has 448 divisors, whose sum is σ = 417183418282752. Its totient is φ = 34085535744000.

The previous prime is 128023437287381. The next prime is 128023437287437. The reversal of 128023437287424 is 424782734320821.

It is a tau number, because it is divible by the number of its divisors (448).

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, 295162234 + ... + 295595654.

Almost surely, 2^{128023437287424} is an apocalyptic number.

128023437287424 is a gapful number since it is divisible by the number (14) 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 128023437287424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208591709141376).

128023437287424 is an abundant number, since it is smaller than the sum of its proper divisors (289159980995328).

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

128023437287424 is a wasteful number, since it uses less digits than its factorization.

128023437287424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433575 (or 433551 counting only the distinct ones).

The product of its (nonzero) digits is 28901376, while the sum is 57.

The spelling of 128023437287424 in words is "one hundred twenty-eight trillion, twenty-three billion, four hundred thirty-seven million, two hundred eighty-seven thousand, four hundred twenty-four".