128695395852 has 36 divisors (see below), whose sum is σ = 325362806496. Its totient is φ = 42891945120.

The previous prime is 128695395841. The next prime is 128695395943. The reversal of 128695395852 is 258593596821.

128695395852 is a `hidden beast` number, since 1 + 2 + 86 + 95 + 395 + 85 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 128695395852.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28548 + ... + 508139.

It is an arithmetic number, because the mean of its divisors is an integer number (9037855736).

Almost surely, 2^128695395852 is an apocalyptic number.

128695395852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128695395852 is an abundant number, since it is smaller than the sum of its proper divisors (196667410644).

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

128695395852 is a wasteful number, since it uses less digits than its factorization.

128695395852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543358 (or 543353 counting only the distinct ones).

The product of its digits is 46656000, while the sum is 63.

The spelling of 128695395852 in words is "one hundred twenty-eight billion, six hundred ninety-five million, three hundred ninety-five thousand, eight hundred fifty-two".