128380501749888 has 224 divisors, whose sum is σ = 403643825799600. Its totient is φ = 40541210519040.

The previous prime is 128380501749887. The next prime is 128380501749889. The reversal of 128380501749888 is 888947105083821.

128380501749888 is a `hidden beast` number, since 1 + 2 + 8 + 3 + 8 + 0 + 50 + 1 + 7 + 498 + 88 = 666.

It is an interprime number because it is at equal distance from previous prime (128380501749887) and next prime (128380501749889).

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

It is not an unprimeable number, because it can be changed into a prime (128380501749883) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 34432858 + ... + 37978713.

Almost surely, 2^{128380501749888} is an apocalyptic number.

128380501749888 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

128380501749888 is an abundant number, since it is smaller than the sum of its proper divisors (275263324049712).

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

128380501749888 is an frugal number, since it uses more digits than its factorization.

128380501749888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72411622 (or 72411595 counting only the distinct ones).

The product of its (nonzero) digits is 247726080, while the sum is 72.

The spelling of 128380501749888 in words is "one hundred twenty-eight trillion, three hundred eighty billion, five hundred one million, seven hundred forty-nine thousand, eight hundred eighty-eight".