128673910 has 8 divisors (see below), whose sum is σ = 231613056. Its totient is φ = 51469560.

The previous prime is 128673907. The next prime is 128673917. The reversal of 128673910 is 19376821.

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

It is a super-2 number, since 2×128673910² = 33113950229376200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 128673910.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128673917) 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, 6433686 + ... + 6433705.

It is an arithmetic number, because the mean of its divisors is an integer number (28951632).

Almost surely, 2^128673910 is an apocalyptic number.

128673910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128673910 is a deficient number, since it is larger than the sum of its proper divisors (102939146).

128673910 is a wasteful number, since it uses less digits than its factorization.

128673910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12867398.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 128673910 is about 11343.4522963690. The cubic root of 128673910 is about 504.8513237457.

The spelling of 128673910 in words is "one hundred twenty-eight million, six hundred seventy-three thousand, nine hundred ten".