65389888986 has 32 divisors (see below), whose sum is σ = 139024444608. Its totient is φ = 20432736000.

The previous prime is 65389888939. The next prime is 65389889041. The reversal of 65389888986 is 68988898356.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1251445 + ... + 1302648.

It is an arithmetic number, because the mean of its divisors is an integer number (4344513894).

Almost surely, 2^65389888986 is an apocalyptic number.

65389888986 is an abundant number, since it is smaller than the sum of its proper divisors (73634555622).

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

65389888986 is a wasteful number, since it uses less digits than its factorization.

65389888986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554366.

The product of its digits is 1433272320, while the sum is 78.

The spelling of 65389888986 in words is "sixty-five billion, three hundred eighty-nine million, eight hundred eighty-eight thousand, nine hundred eighty-six".