65727999937 has 2 divisors, whose sum is σ = 65727999938. Its totient is φ = 65727999936.

The previous prime is 65727999919. The next prime is 65728000001. The reversal of 65727999937 is 73999972756.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36225128241 + 29502871696 = 190329^2 + 171764^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65727999937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65727999937.

It is not a weakly prime, because it can be changed into another prime (65727919937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32863999968 + 32863999969.

It is an arithmetic number, because the mean of its divisors is an integer number (32863999969).

Almost surely, 2^65727999937 is an apocalyptic number.

It is an amenable number.

65727999937 is a deficient number, since it is larger than the sum of its proper divisors (1).

65727999937 is an equidigital number, since it uses as much as digits as its factorization.

65727999937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 405076140, while the sum is 73.

The spelling of 65727999937 in words is "sixty-five billion, seven hundred twenty-seven million, nine hundred ninety-nine thousand, nine hundred thirty-seven".