128295045738 has 24 divisors (see below), whose sum is σ = 277985382948. Its totient is φ = 42763048512.

The previous prime is 128295045709. The next prime is 128295045779. The reversal of 128295045738 is 837540592821.

128295045738 is a `hidden beast` number, since 1 + 2 + 82 + 9 + 504 + 57 + 3 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 124787682009 + 3507363729 = 353253^2 + 59223^2 .

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, 269320 + ... + 573692.

Almost surely, 2^128295045738 is an apocalyptic number.

128295045738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

128295045738 is an abundant number, since it is smaller than the sum of its proper divisors (149690337210).

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

128295045738 is a wasteful number, since it uses less digits than its factorization.

128295045738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327798 (or 327795 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 128295045738 in words is "one hundred twenty-eight billion, two hundred ninety-five million, forty-five thousand, seven hundred thirty-eight".