128968498 has 8 divisors (see below), whose sum is σ = 201863808. Its totient is φ = 61680564.

The previous prime is 128968403. The next prime is 128968519. The reversal of 128968498 is 894869821.

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

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, 1401786 + ... + 1401877.

It is an arithmetic number, because the mean of its divisors is an integer number (25232976).

Almost surely, 2^128968498 is an apocalyptic number.

128968498 is a deficient number, since it is larger than the sum of its proper divisors (72895310).

128968498 is a wasteful number, since it uses less digits than its factorization.

128968498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2803688.

The product of its digits is 1990656, while the sum is 55.

The square root of 128968498 is about 11356.4298087031. The cubic root of 128968498 is about 505.2363015281.

The spelling of 128968498 in words is "one hundred twenty-eight million, nine hundred sixty-eight thousand, four hundred ninety-eight".