65767759873 has 2 divisors, whose sum is σ = 65767759874. Its totient is φ = 65767759872.

The previous prime is 65767759861. The next prime is 65767759891. The reversal of 65767759873 is 37895776756.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65601040129 + 166719744 = 256127^2 + 12912^2 .

It is a cyclic number.

It is not a de Polignac number, because 65767759873 - 2²⁵ = 65734205441 is a prime.

It is a super-3 number, since 3×65767759873³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (65767759273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32883879936 + 32883879937.

It is an arithmetic number, because the mean of its divisors is an integer number (32883879937).

Almost surely, 2^65767759873 is an apocalyptic number.

It is an amenable number.

65767759873 is a deficient number, since it is larger than the sum of its proper divisors (1).

65767759873 is an equidigital number, since it uses as much as digits as its factorization.

65767759873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466754400, while the sum is 70.

The spelling of 65767759873 in words is "sixty-five billion, seven hundred sixty-seven million, seven hundred fifty-nine thousand, eight hundred seventy-three".