128910770 has 16 divisors (see below), whose sum is σ = 232296768. Its totient is φ = 51507120.

The previous prime is 128910757. The next prime is 128910781. The reversal of 128910770 is 77019821.

It is a self number, because there is not a number n which added to its sum of digits gives 128910770.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3005 + ... + 16335.

It is an arithmetic number, because the mean of its divisors is an integer number (14518548).

Almost surely, 2^128910770 is an apocalyptic number.

128910770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128910770 is a deficient number, since it is larger than the sum of its proper divisors (103385998).

128910770 is a wasteful number, since it uses less digits than its factorization.

128910770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14305.

The product of its (nonzero) digits is 7056, while the sum is 35.

The square root of 128910770 is about 11353.8878803694. The cubic root of 128910770 is about 505.1609068013.

The spelling of 128910770 in words is "one hundred twenty-eight million, nine hundred ten thousand, seven hundred seventy".