65864382243 has 16 divisors (see below), whose sum is σ = 98392002816. Its totient is φ = 38838947040.

The previous prime is 65864382223. The next prime is 65864382263. The reversal of 65864382243 is 34228346856.

It is an interprime number because it is at equal distance from previous prime (65864382223) and next prime (65864382263).

It is not a de Polignac number, because 65864382243 - 2⁵ = 65864382211 is a prime.

It is a super-2 number, since 2×65864382243² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65864382223) 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, 26970271 + ... + 26972712.

It is an arithmetic number, because the mean of its divisors is an integer number (6149500176).

Almost surely, 2^65864382243 is an apocalyptic number.

65864382243 is a deficient number, since it is larger than the sum of its proper divisors (32527620573).

65864382243 is a wasteful number, since it uses less digits than its factorization.

65864382243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53943034.

The product of its digits is 6635520, while the sum is 51.

The spelling of 65864382243 in words is "sixty-five billion, eight hundred sixty-four million, three hundred eighty-two thousand, two hundred forty-three".