128064670 has 8 divisors (see below), whose sum is σ = 230516424. Its totient is φ = 51225864.

The previous prime is 128064649. The next prime is 128064679. The reversal of 128064670 is 76460821.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128064679) 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, 6403224 + ... + 6403243.

It is an arithmetic number, because the mean of its divisors is an integer number (28814553).

Almost surely, 2^128064670 is an apocalyptic number.

128064670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128064670 is a deficient number, since it is larger than the sum of its proper divisors (102451754).

128064670 is a wasteful number, since it uses less digits than its factorization.

128064670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12806474.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 128064670 is about 11316.5661753025. The cubic root of 128064670 is about 504.0532797248.

The spelling of 128064670 in words is "one hundred twenty-eight million, sixty-four thousand, six hundred seventy".