65393910737 has 2 divisors, whose sum is σ = 65393910738. Its totient is φ = 65393910736.

The previous prime is 65393910733. The next prime is 65393910739. The reversal of 65393910737 is 73701939356.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39939622801 + 25454287936 = 199849^2 + 159544^2 .

It is a cyclic number.

It is not a de Polignac number, because 65393910737 - 2² = 65393910733 is a prime.

It is a super-2 number, since 2×65393910737² (a number of 22 digits) contains 22 as substring.

Together with 65393910739, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65393910733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32696955368 + 32696955369.

It is an arithmetic number, because the mean of its divisors is an integer number (32696955369).

Almost surely, 2^65393910737 is an apocalyptic number.

It is an amenable number.

65393910737 is a deficient number, since it is larger than the sum of its proper divisors (1).

65393910737 is an equidigital number, since it uses as much as digits as its factorization.

65393910737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3214890, while the sum is 53.

The spelling of 65393910737 in words is "sixty-five billion, three hundred ninety-three million, nine hundred ten thousand, seven hundred thirty-seven".