128632888381600 has 72 divisors (see below), whose sum is σ = 314034119897148. Its totient is φ = 51451667404800.

The previous prime is 128632888381583. The next prime is 128632888381637. The reversal of 128632888381600 is 6183888236821.

It can be written as a sum of positive squares in 6 ways, for example, as 1222342515216 + 127410545866384 = 1105596^2 + 11287628^2 .

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, 25565302 + ... + 30180298.

Almost surely, 2^{128632888381600} is an apocalyptic number.

128632888381600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128632888381600 is an abundant number, since it is smaller than the sum of its proper divisors (185401231515548).

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

128632888381600 is a wasteful number, since it uses less digits than its factorization.

128632888381600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4649858 (or 4649845 counting only the distinct ones).

The product of its (nonzero) digits is 42467328, while the sum is 64.

The spelling of 128632888381600 in words is "one hundred twenty-eight trillion, six hundred thirty-two billion, eight hundred eighty-eight million, three hundred eighty-one thousand, six hundred".