65039496857 has 2 divisors, whose sum is σ = 65039496858. Its totient is φ = 65039496856.

The previous prime is 65039496839. The next prime is 65039496919. The reversal of 65039496857 is 75869493056.

It is an a-pointer prime, because the next prime (65039496919) can be obtained adding 65039496857 to its sum of digits (62).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58233411856 + 6806085001 = 241316^2 + 82499^2 .

It is a cyclic number.

It is not a de Polignac number, because 65039496857 - 2⁶ = 65039496793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65039496857.

It is not a weakly prime, because it can be changed into another prime (65039498857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32519748428 + 32519748429.

It is an arithmetic number, because the mean of its divisors is an integer number (32519748429).

Almost surely, 2^65039496857 is an apocalyptic number.

It is an amenable number.

65039496857 is a deficient number, since it is larger than the sum of its proper divisors (1).

65039496857 is an equidigital number, since it uses as much as digits as its factorization.

65039496857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48988800, while the sum is 62.

The spelling of 65039496857 in words is "sixty-five billion, thirty-nine million, four hundred ninety-six thousand, eight hundred fifty-seven".