128291363308 has 12 divisors (see below), whose sum is σ = 227214824760. Its totient is φ = 63372841952.

The previous prime is 128291363279. The next prime is 128291363309. The reversal of 128291363308 is 803363192821.

It is not an unprimeable number, because it can be changed into a prime (128291363309) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 193209553 + ... + 193210216.

It is an arithmetic number, because the mean of its divisors is an integer number (18934568730).

Almost surely, 2^128291363308 is an apocalyptic number.

It is an amenable number.

128291363308 is a deficient number, since it is larger than the sum of its proper divisors (98923461452).

128291363308 is a wasteful number, since it uses less digits than its factorization.

128291363308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386419856 (or 386419854 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 128291363308 in words is "one hundred twenty-eight billion, two hundred ninety-one million, three hundred sixty-three thousand, three hundred eight".