65672877593 has 2 divisors, whose sum is σ = 65672877594. Its totient is φ = 65672877592.

The previous prime is 65672877583. The next prime is 65672877709. The reversal of 65672877593 is 39577827656.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61185485449 + 4487392144 = 247357^2 + 66988^2 .

It is a cyclic number.

It is not a de Polignac number, because 65672877593 - 2²⁰ = 65671829017 is a prime.

It is a super-2 number, since 2×65672877593² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (65672877563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32836438796 + 32836438797.

It is an arithmetic number, because the mean of its divisors is an integer number (32836438797).

Almost surely, 2^65672877593 is an apocalyptic number.

It is an amenable number.

65672877593 is a deficient number, since it is larger than the sum of its proper divisors (1).

65672877593 is an equidigital number, since it uses as much as digits as its factorization.

65672877593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 133358400, while the sum is 65.

The spelling of 65672877593 in words is "sixty-five billion, six hundred seventy-two million, eight hundred seventy-seven thousand, five hundred ninety-three".