65004421243 has 8 divisors (see below), whose sum is σ = 67264253280. Its totient is φ = 62745809280.

The previous prime is 65004421201. The next prime is 65004421253. The reversal of 65004421243 is 34212440056.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65004421243 - 2⁹ = 65004420731 is a prime.

It is a super-2 number, since 2×65004421243² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65004421253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195943 + ... + 410368.

It is an arithmetic number, because the mean of its divisors is an integer number (8408031660).

Almost surely, 2^65004421243 is an apocalyptic number.

65004421243 is a deficient number, since it is larger than the sum of its proper divisors (2259832037).

65004421243 is a wasteful number, since it uses less digits than its factorization.

65004421243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610037.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 65004421243 its reverse (34212440056), we get a palindrome (99216861299).

The spelling of 65004421243 in words is "sixty-five billion, four million, four hundred twenty-one thousand, two hundred forty-three".