65862371849 has 2 divisors, whose sum is σ = 65862371850. Its totient is φ = 65862371848.

The previous prime is 65862371843. The next prime is 65862371851. The reversal of 65862371849 is 94817326856.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38651560000 + 27210811849 = 196600^2 + 164957^2 .

It is a cyclic number.

It is not a de Polignac number, because 65862371849 - 2⁸ = 65862371593 is a prime.

It is a Sophie Germain prime.

Together with 65862371851, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (65862371843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32931185924 + 32931185925.

It is an arithmetic number, because the mean of its divisors is an integer number (32931185925).

Almost surely, 2^65862371849 is an apocalyptic number.

It is an amenable number.

65862371849 is a deficient number, since it is larger than the sum of its proper divisors (1).

65862371849 is an equidigital number, since it uses as much as digits as its factorization.

65862371849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17418240, while the sum is 59.

The spelling of 65862371849 in words is "sixty-five billion, eight hundred sixty-two million, three hundred seventy-one thousand, eight hundred forty-nine".