128523036292 has 18 divisors (see below), whose sum is σ = 261636181422. Its totient is φ = 55081301184.

The previous prime is 128523036269. The next prime is 128523036329. The reversal of 128523036292 is 292630325821.

It can be written as a sum of positive squares in only one way, i.e., 73736143936 + 54786892356 = 271544^2 + 234066^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 327864693 + ... + 327865084.

Almost surely, 2^128523036292 is an apocalyptic number.

It is an amenable number.

128523036292 is an abundant number, since it is smaller than the sum of its proper divisors (133113145130).

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

128523036292 is a wasteful number, since it uses less digits than its factorization.

128523036292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655729795 (or 655729786 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 128523036292 in words is "one hundred twenty-eight billion, five hundred twenty-three million, thirty-six thousand, two hundred ninety-two".