128812489284400 has 60 divisors (see below), whose sum is σ = 309474728415664. Its totient is φ = 51524542368000.

The previous prime is 128812489284361. The next prime is 128812489284421. The reversal of 128812489284400 is 4482984218821.

128812489284400 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46091005 + ... + 48805795.

Almost surely, 2^{128812489284400} is an apocalyptic number.

128812489284400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128812489284400 is an abundant number, since it is smaller than the sum of its proper divisors (180662239131264).

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

128812489284400 is a wasteful number, since it uses less digits than its factorization.

128812489284400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2833430 (or 2833419 counting only the distinct ones).

The product of its (nonzero) digits is 18874368, while the sum is 61.

The spelling of 128812489284400 in words is "one hundred twenty-eight trillion, eight hundred twelve billion, four hundred eighty-nine million, two hundred eighty-four thousand, four hundred".