65756714797 has 2 divisors, whose sum is σ = 65756714798. Its totient is φ = 65756714796.

The previous prime is 65756714729. The next prime is 65756714887. The reversal of 65756714797 is 79741765756.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65726089641 + 30625156 = 256371^2 + 5534^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65756714797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65756714707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32878357398 + 32878357399.

It is an arithmetic number, because the mean of its divisors is an integer number (32878357399).

Almost surely, 2^65756714797 is an apocalyptic number.

It is an amenable number.

65756714797 is a deficient number, since it is larger than the sum of its proper divisors (1).

65756714797 is an equidigital number, since it uses as much as digits as its factorization.

65756714797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77792400, while the sum is 64.

The spelling of 65756714797 in words is "sixty-five billion, seven hundred fifty-six million, seven hundred fourteen thousand, seven hundred ninety-seven".