64128795 has 8 divisors (see below), whose sum is σ = 102606096. Its totient is φ = 34202016.

The previous prime is 64128791. The next prime is 64128809. The reversal of 64128795 is 59782146.

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

It is not a de Polignac number, because 64128795 - 2² = 64128791 is a prime.

It is a super-2 number, since 2×64128795² = 8225004696304050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64128791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2137612 + ... + 2137641.

It is an arithmetic number, because the mean of its divisors is an integer number (12825762).

Almost surely, 2^64128795 is an apocalyptic number.

64128795 is a deficient number, since it is larger than the sum of its proper divisors (38477301).

64128795 is a wasteful number, since it uses less digits than its factorization.

64128795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4275261.

The product of its digits is 120960, while the sum is 42.

The square root of 64128795 is about 8008.0456417281. The cubic root of 64128795 is about 400.2681431247.

The spelling of 64128795 in words is "sixty-four million, one hundred twenty-eight thousand, seven hundred ninety-five".