65039513389 has 16 divisors (see below), whose sum is σ = 71067870720. Its totient is φ = 59357753280.

The previous prime is 65039513381. The next prime is 65039513401. The reversal of 65039513389 is 98331593056.

65039513389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 65039513389 - 2³ = 65039513381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65039513381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 802582 + ... + 879895.

It is an arithmetic number, because the mean of its divisors is an integer number (4441741920).

Almost surely, 2^65039513389 is an apocalyptic number.

It is an amenable number.

65039513389 is a deficient number, since it is larger than the sum of its proper divisors (6028357331).

65039513389 is a wasteful number, since it uses less digits than its factorization.

65039513389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682580.

The product of its (nonzero) digits is 2624400, while the sum is 52.

The spelling of 65039513389 in words is "sixty-five billion, thirty-nine million, five hundred thirteen thousand, three hundred eighty-nine".