65347707857 has 2 divisors, whose sum is σ = 65347707858. Its totient is φ = 65347707856.

The previous prime is 65347707811. The next prime is 65347707869. The reversal of 65347707857 is 75870774356.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34562899921 + 30784807936 = 185911^2 + 175456^2 .

It is a cyclic number.

It is not a de Polignac number, because 65347707857 - 2⁶ = 65347707793 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65347707796 and 65347707805.

It is not a weakly prime, because it can be changed into another prime (65347707457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32673853928 + 32673853929.

It is an arithmetic number, because the mean of its divisors is an integer number (32673853929).

Almost surely, 2^65347707857 is an apocalyptic number.

It is an amenable number.

65347707857 is a deficient number, since it is larger than the sum of its proper divisors (1).

65347707857 is an equidigital number, since it uses as much as digits as its factorization.

65347707857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34574400, while the sum is 59.

The spelling of 65347707857 in words is "sixty-five billion, three hundred forty-seven million, seven hundred seven thousand, eight hundred fifty-seven".