128341657540268 has 12 divisors (see below), whose sum is σ = 226658431895280. Its totient is φ = 63582105570192.

The previous prime is 128341657540249. The next prime is 128341657540337. The reversal of 128341657540268 is 862045756143821.

It is a self number, because there is not a number n which added to its sum of digits gives 128341657540268.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147180799496 + ... + 147180800367.

It is an arithmetic number, because the mean of its divisors is an integer number (18888202657940).

Almost surely, 2^{128341657540268} is an apocalyptic number.

It is an amenable number.

128341657540268 is a deficient number, since it is larger than the sum of its proper divisors (98316774355012).

128341657540268 is a wasteful number, since it uses less digits than its factorization.

128341657540268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294361599976 (or 294361599974 counting only the distinct ones).

The product of its (nonzero) digits is 77414400, while the sum is 62.

The spelling of 128341657540268 in words is "one hundred twenty-eight trillion, three hundred forty-one billion, six hundred fifty-seven million, five hundred forty thousand, two hundred sixty-eight".