128327696877600 has 432 divisors, whose sum is σ = 498021965741664. Its totient is φ = 30834435072000.

The previous prime is 128327696877563. The next prime is 128327696877623. The reversal of 128327696877600 is 6778696723821.

128327696877600 is a `hidden beast` number, since 1 + 2 + 8 + 3 + 2 + 7 + 6 + 9 + 6 + 8 + 7 + 7 + 600 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1780135 + ... + 16119065.

It is an arithmetic number, because the mean of its divisors is an integer number (1152828624402).

Almost surely, 2^{128327696877600} is an apocalyptic number.

128327696877600 is a gapful number since it is divisible by the number (10) 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 128327696877600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249010982870832).

128327696877600 is an abundant number, since it is smaller than the sum of its proper divisors (369694268864064).

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

128327696877600 is a wasteful number, since it uses less digits than its factorization.

128327696877600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14339081 (or 14339065 counting only the distinct ones).

The product of its (nonzero) digits is 512096256, while the sum is 72.

The spelling of 128327696877600 in words is "one hundred twenty-eight trillion, three hundred twenty-seven billion, six hundred ninety-six million, eight hundred seventy-seven thousand, six hundred".