128863228752 has 80 divisors (see below), whose sum is σ = 373547549760. Its totient is φ = 42529104000.

The previous prime is 128863228723. The next prime is 128863228789. The reversal of 128863228752 is 257822368821.

128863228752 is a `hidden beast` number, since 1 + 288 + 6 + 32 + 287 + 52 = 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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1433074 + ... + 1520337.

It is an arithmetic number, because the mean of its divisors is an integer number (4669344372).

Almost surely, 2^128863228752 is an apocalyptic number.

128863228752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128863228752 is an abundant number, since it is smaller than the sum of its proper divisors (244684321008).

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

128863228752 is a wasteful number, since it uses less digits than its factorization.

128863228752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2953529 (or 2953517 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 54.

The spelling of 128863228752 in words is "one hundred twenty-eight billion, eight hundred sixty-three million, two hundred twenty-eight thousand, seven hundred fifty-two".