128575669032 has 64 divisors (see below), whose sum is σ = 357290352000. Its totient is φ = 42842270592.

The previous prime is 128575669031. The next prime is 128575669049. The reversal of 128575669032 is 230966575821.

128575669032 is a `hidden beast` number, since 1 + 2 + 8 + 575 + 6 + 69 + 0 + 3 + 2 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 128575669032.

It is not an unprimeable number, because it can be changed into a prime (128575669031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 463444 + ... + 686972.

It is an arithmetic number, because the mean of its divisors is an integer number (5582661750).

Almost surely, 2^128575669032 is an apocalyptic number.

128575669032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128575669032 is an abundant number, since it is smaller than the sum of its proper divisors (228714682968).

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

128575669032 is a wasteful number, since it uses less digits than its factorization.

128575669032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226207 (or 226197 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 128575669032 in words is "one hundred twenty-eight billion, five hundred seventy-five million, six hundred sixty-nine thousand, thirty-two".