65039496893 has 4 divisors (see below), whose sum is σ = 74330853600. Its totient is φ = 55748140188.

The previous prime is 65039496857. The next prime is 65039496919. The reversal of 65039496893 is 39869493056.

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 a cyclic number.

It is not a de Polignac number, because 65039496893 - 2⁸ = 65039496637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65039496493) 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 3 ways as a sum of consecutive naturals, for example, 4645678343 + ... + 4645678356.

It is an arithmetic number, because the mean of its divisors is an integer number (18582713400).

Almost surely, 2^65039496893 is an apocalyptic number.

It is an amenable number.

65039496893 is a deficient number, since it is larger than the sum of its proper divisors (9291356707).

65039496893 is an equidigital number, since it uses as much as digits as its factorization.

65039496893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9291356706.

The product of its (nonzero) digits is 37791360, while the sum is 62.

The spelling of 65039496893 in words is "sixty-five billion, thirty-nine million, four hundred ninety-six thousand, eight hundred ninety-three".