128927802208480 has 384 divisors, whose sum is σ = 358373153488896. Its totient is φ = 43361463552000.

The previous prime is 128927802208459. The next prime is 128927802208483. The reversal of 128927802208480 is 84802208729821.

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128927802208483) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 157504255 + ... + 158320705.

It is an arithmetic number, because the mean of its divisors is an integer number (933263420544).

Almost surely, 2^{128927802208480} is an apocalyptic number.

128927802208480 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 128927802208480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179186576744448).

128927802208480 is an abundant number, since it is smaller than the sum of its proper divisors (229445351280416).

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

128927802208480 is a wasteful number, since it uses less digits than its factorization.

128927802208480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816630 (or 816622 counting only the distinct ones).

The product of its (nonzero) digits is 16515072, while the sum is 61.

The spelling of 128927802208480 in words is "one hundred twenty-eight trillion, nine hundred twenty-seven billion, eight hundred two million, two hundred eight thousand, four hundred eighty".