65838766347 has 12 divisors (see below), whose sum is σ = 95103141120. Its totient is φ = 43891264368.

The previous prime is 65838766333. The next prime is 65838766349. The reversal of 65838766347 is 74366783856.

65838766347 is a `hidden beast` number, since 6 + 583 + 8 + 7 + 6 + 6 + 3 + 47 = 666.

It is not a de Polignac number, because 65838766347 - 2¹⁰ = 65838765323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65838766349) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 322929 + ... + 485757.

It is an arithmetic number, because the mean of its divisors is an integer number (7925261760).

Almost surely, 2^65838766347 is an apocalyptic number.

65838766347 is a deficient number, since it is larger than the sum of its proper divisors (29264374773).

65838766347 is a wasteful number, since it uses less digits than its factorization.

65838766347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207762 (or 207759 counting only the distinct ones).

The product of its digits is 121927680, while the sum is 63.

The spelling of 65838766347 in words is "sixty-five billion, eight hundred thirty-eight million, seven hundred sixty-six thousand, three hundred forty-seven".