128268698 has 8 divisors (see below), whose sum is σ = 194721408. Its totient is φ = 63361564.

The previous prime is 128268697. The next prime is 128268703. The reversal of 128268698 is 896862821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (128268691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386186 + ... + 386517.

It is an arithmetic number, because the mean of its divisors is an integer number (24340176).

Almost surely, 2^128268698 is an apocalyptic number.

128268698 is a deficient number, since it is larger than the sum of its proper divisors (66452710).

128268698 is an equidigital number, since it uses as much as digits as its factorization.

128268698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772788.

The product of its digits is 663552, while the sum is 50.

The square root of 128268698 is about 11325.5771596859. The cubic root of 128268698 is about 504.3208175155.

The spelling of 128268698 in words is "one hundred twenty-eight million, two hundred sixty-eight thousand, six hundred ninety-eight".