65389888988 has 6 divisors (see below), whose sum is σ = 114432305736. Its totient is φ = 32694944492.

The previous prime is 65389888939. The next prime is 65389889041. The reversal of 65389888988 is 88988898356.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 8173736120 + ... + 8173736127.

It is an arithmetic number, because the mean of its divisors is an integer number (19072050956).

Almost surely, 2^65389888988 is an apocalyptic number.

It is an amenable number.

65389888988 is a deficient number, since it is larger than the sum of its proper divisors (49042416748).

65389888988 is a wasteful number, since it uses less digits than its factorization.

65389888988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16347472251 (or 16347472249 counting only the distinct ones).

The product of its digits is 1911029760, while the sum is 80.

The spelling of 65389888988 in words is "sixty-five billion, three hundred eighty-nine million, eight hundred eighty-eight thousand, nine hundred eighty-eight".