65097386639 has 8 divisors (see below), whose sum is σ = 65492114688. Its totient is φ = 64703308320.

The previous prime is 65097386621. The next prime is 65097386647. The reversal of 65097386639 is 93668379056.

65097386639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 65097386639 - 2⁸ = 65097386383 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 (65097388639) 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, 39314 + ... + 362960.

It is an arithmetic number, because the mean of its divisors is an integer number (8186514336).

Almost surely, 2^65097386639 is an apocalyptic number.

65097386639 is a deficient number, since it is larger than the sum of its proper divisors (394728049).

65097386639 is a wasteful number, since it uses less digits than its factorization.

65097386639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324865.

The product of its (nonzero) digits is 44089920, while the sum is 62.

The spelling of 65097386639 in words is "sixty-five billion, ninety-seven million, three hundred eighty-six thousand, six hundred thirty-nine".