128766876 has 48 divisors (see below), whose sum is σ = 361455360. Its totient is φ = 34853760.

The previous prime is 128766871. The next prime is 128766881. The reversal of 128766876 is 678667821.

It is an interprime number because it is at equal distance from previous prime (128766871) and next prime (128766881).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128766871) 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, 38745 + ... + 41936.

It is an arithmetic number, because the mean of its divisors is an integer number (7530320).

Almost surely, 2^128766876 is an apocalyptic number.

It is an amenable number.

128766876 is an abundant number, since it is smaller than the sum of its proper divisors (232688484).

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

128766876 is a wasteful number, since it uses less digits than its factorization.

128766876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80714 (or 80712 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 51.

The square root of 128766876 is about 11347.5493389542. The cubic root of 128766876 is about 504.9728783264.

The spelling of 128766876 in words is "one hundred twenty-eight million, seven hundred sixty-six thousand, eight hundred seventy-six".