128487527235480 has 1024 divisors, whose sum is σ = 463726046085120. Its totient is φ = 27866397081600.

The previous prime is 128487527235367. The next prime is 128487527235583. The reversal of 128487527235480 is 84532725784821.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 211676321337 + ... + 211676321943.

It is an arithmetic number, because the mean of its divisors is an integer number (452857466880).

Almost surely, 2^{128487527235480} is an apocalyptic number.

128487527235480 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 128487527235480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231863023042560).

128487527235480 is an abundant number, since it is smaller than the sum of its proper divisors (335238518849640).

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

128487527235480 is a wasteful number, since it uses less digits than its factorization.

128487527235480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400 (or 1396 counting only the distinct ones).

The product of its (nonzero) digits is 240844800, while the sum is 66.

The spelling of 128487527235480 in words is "one hundred twenty-eight trillion, four hundred eighty-seven billion, five hundred twenty-seven million, two hundred thirty-five thousand, four hundred eighty".