128751980544 has 260 divisors, whose sum is σ = 419596752960. Its totient is φ = 39014645760.

The previous prime is 128751980501. The next prime is 128751980557. The reversal of 128751980544 is 445089157821.

128751980544 is a `hidden beast` number, since 1 + 2 + 8 + 7 + 5 + 1 + 98 + 0 + 544 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3631897 + ... + 3667175.

Almost surely, 2^128751980544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128751980544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209798376480).

128751980544 is an abundant number, since it is smaller than the sum of its proper divisors (290844772416).

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

128751980544 is an equidigital number, since it uses as much as digits as its factorization.

128751980544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35326 (or 35295 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 54.

The spelling of 128751980544 in words is "one hundred twenty-eight billion, seven hundred fifty-one million, nine hundred eighty thousand, five hundred forty-four".