65004815897 has 4 divisors (see below), whose sum is σ = 74291218176. Its totient is φ = 55718413620.

The previous prime is 65004815891. The next prime is 65004815903. The reversal of 65004815897 is 79851840056.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (65004815891) and next prime (65004815903).

It is a cyclic number.

It is not a de Polignac number, because 65004815897 - 2⁸ = 65004815641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65004815891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4643201129 + ... + 4643201142.

It is an arithmetic number, because the mean of its divisors is an integer number (18572804544).

Almost surely, 2^65004815897 is an apocalyptic number.

It is an amenable number.

65004815897 is a deficient number, since it is larger than the sum of its proper divisors (9286402279).

65004815897 is an equidigital number, since it uses as much as digits as its factorization.

65004815897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9286402278.

The product of its (nonzero) digits is 2419200, while the sum is 53.

The spelling of 65004815897 in words is "sixty-five billion, four million, eight hundred fifteen thousand, eight hundred ninety-seven".