65000728578 has 16 divisors (see below), whose sum is σ = 130009239360. Its totient is φ = 21665612496.

The previous prime is 65000728553. The next prime is 65000728591. The reversal of 65000728578 is 87582700056.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212725 + ... + 418632.

It is an arithmetic number, because the mean of its divisors is an integer number (8125577460).

Almost surely, 2^65000728578 is an apocalyptic number.

65000728578 is an abundant number, since it is smaller than the sum of its proper divisors (65008510782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65000728578 is a wasteful number, since it uses less digits than its factorization.

65000728578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648521.

The product of its (nonzero) digits is 940800, while the sum is 48.

The spelling of 65000728578 in words is "sixty-five billion, seven hundred twenty-eight thousand, five hundred seventy-eight".