65324078399 has 8 divisors (see below), whose sum is σ = 69175727568. Its totient is φ = 61473435520.

The previous prime is 65324078299. The next prime is 65324078411. The reversal of 65324078399 is 99387042356.

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 65324078399 - 2¹² = 65324074303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65324078299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115817 + ... + 379554.

It is an arithmetic number, because the mean of its divisors is an integer number (8646965946).

Almost surely, 2^65324078399 is an apocalyptic number.

65324078399 is a deficient number, since it is larger than the sum of its proper divisors (3851649169).

65324078399 is a wasteful number, since it uses less digits than its factorization.

65324078399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503145.

The product of its (nonzero) digits is 9797760, while the sum is 56.

The spelling of 65324078399 in words is "sixty-five billion, three hundred twenty-four million, seventy-eight thousand, three hundred ninety-nine".