65850592849 has 2 divisors, whose sum is σ = 65850592850. Its totient is φ = 65850592848.

The previous prime is 65850592771. The next prime is 65850592859. The reversal of 65850592849 is 94829505856.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64106695249 + 1743897600 = 253193^2 + 41760^2 .

It is a cyclic number.

It is not a de Polignac number, because 65850592849 - 2⁹ = 65850592337 is a prime.

It is not a weakly prime, because it can be changed into another prime (65850592859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32925296424 + 32925296425.

It is an arithmetic number, because the mean of its divisors is an integer number (32925296425).

Almost surely, 2^65850592849 is an apocalyptic number.

It is an amenable number.

65850592849 is a deficient number, since it is larger than the sum of its proper divisors (1).

65850592849 is an equidigital number, since it uses as much as digits as its factorization.

65850592849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104000, while the sum is 61.

The spelling of 65850592849 in words is "sixty-five billion, eight hundred fifty million, five hundred ninety-two thousand, eight hundred forty-nine".