64579545 has 32 divisors (see below), whose sum is σ = 115200000. Its totient is φ = 34324992.

The previous prime is 64579531. The next prime is 64579553. The reversal of 64579545 is 54597546.

It is not a de Polignac number, because 64579545 - 2⁸ = 64579289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 64579545.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51081 + ... + 52329.

It is an arithmetic number, because the mean of its divisors is an integer number (3600000).

Almost surely, 2^64579545 is an apocalyptic number.

It is an amenable number.

64579545 is a deficient number, since it is larger than the sum of its proper divisors (50620455).

64579545 is a wasteful number, since it uses less digits than its factorization.

64579545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646 (or 1640 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The square root of 64579545 is about 8036.1399315841. The cubic root of 64579545 is about 401.2037591922.

The spelling of 64579545 in words is "sixty-four million, five hundred seventy-nine thousand, five hundred forty-five".