65260649729 has 8 divisors (see below), whose sum is σ = 71349225888. Its totient is φ = 59198038560.

The previous prime is 65260649681. The next prime is 65260649759. The reversal of 65260649729 is 92794606256.

It is a happy number.

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 65260649729 - 2²⁰ = 65259601153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65260649759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6485987 + ... + 6496040.

It is an arithmetic number, because the mean of its divisors is an integer number (8918653236).

Almost surely, 2^65260649729 is an apocalyptic number.

It is an amenable number.

65260649729 is a deficient number, since it is larger than the sum of its proper divisors (6088576159).

65260649729 is a wasteful number, since it uses less digits than its factorization.

65260649729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12982495.

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

The spelling of 65260649729 in words is "sixty-five billion, two hundred sixty million, six hundred forty-nine thousand, seven hundred twenty-nine".