3665005862857 has 2 divisors, whose sum is σ = 3665005862858. Its totient is φ = 3665005862856.

The previous prime is 3665005862827. The next prime is 3665005862863. The reversal of 3665005862857 is 7582685005663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3169881133056 + 495124729801 = 1780416^2 + 703651^2 .

It is a cyclic number.

It is not a de Polignac number, because 3665005862857 - 2²⁷ = 3664871645129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3665005862795 and 3665005862804.

It is not a weakly prime, because it can be changed into another prime (3665005862807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1832502931428 + 1832502931429.

It is an arithmetic number, because the mean of its divisors is an integer number (1832502931429).

Almost surely, 2^{3665005862857} is an apocalyptic number.

It is an amenable number.

3665005862857 is a deficient number, since it is larger than the sum of its proper divisors (1).

3665005862857 is an equidigital number, since it uses as much as digits as its factorization.

3665005862857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576000, while the sum is 61.

The spelling of 3665005862857 in words is "three trillion, six hundred sixty-five billion, five million, eight hundred sixty-two thousand, eight hundred fifty-seven".