128257252504884 has 96 divisors (see below), whose sum is σ = 344987579059200. Its totient is φ = 41163290259840.

The previous prime is 128257252504859. The next prime is 128257252504897. The reversal of 128257252504884 is 488405252752821.

It is a happy number.

128257252504884 is a `hidden beast` number, since 1 + 2 + 8 + 2 + 5 + 72 + 52 + 504 + 8 + 8 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96570439 + ... + 97889550.

It is an arithmetic number, because the mean of its divisors is an integer number (3593620615200).

Almost surely, 2^{128257252504884} is an apocalyptic number.

It is an amenable number.

128257252504884 is an abundant number, since it is smaller than the sum of its proper divisors (216730326554316).

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

128257252504884 is a wasteful number, since it uses less digits than its factorization.

128257252504884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194460230 (or 194460222 counting only the distinct ones).

The product of its (nonzero) digits is 114688000, while the sum is 63.

The spelling of 128257252504884 in words is "one hundred twenty-eight trillion, two hundred fifty-seven billion, two hundred fifty-two million, five hundred four thousand, eight hundred eighty-four".