65913839361 has 12 divisors (see below), whose sum is σ = 95231278740. Its totient is φ = 43932221280.

The previous prime is 65913839359. The next prime is 65913839399. The reversal of 65913839361 is 16393831956.

65913839361 is a `hidden beast` number, since 65 + 9 + 138 + 393 + 61 = 666.

65913839361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 29138490000 + 36775349361 = 170700^2 + 191769^2 .

It is not a de Polignac number, because 65913839361 - 2¹ = 65913839359 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65913839298 and 65913839307.

It is not an unprimeable number, because it can be changed into a prime (65913839161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 821046 + ... + 897743.

It is an arithmetic number, because the mean of its divisors is an integer number (7935939895).

Almost surely, 2^65913839361 is an apocalyptic number.

It is an amenable number.

65913839361 is a deficient number, since it is larger than the sum of its proper divisors (29317439379).

65913839361 is a wasteful number, since it uses less digits than its factorization.

65913839361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1723056 (or 1723053 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 54.

The spelling of 65913839361 in words is "sixty-five billion, nine hundred thirteen million, eight hundred thirty-nine thousand, three hundred sixty-one".