3685357870841 has 2 divisors, whose sum is σ = 3685357870842. Its totient is φ = 3685357870840.

The previous prime is 3685357870801. The next prime is 3685357870937. The reversal of 3685357870841 is 1480787535863.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3417469849600 + 267888021241 = 1848640^2 + 517579^2 .

It is an emirp because it is prime and its reverse (1480787535863) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3685357870841 - 2³⁸ = 3410479963897 is a prime.

It is not a weakly prime, because it can be changed into another prime (3685357870801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1842678935420 + 1842678935421.

It is an arithmetic number, because the mean of its divisors is an integer number (1842678935421).

Almost surely, 2^{3685357870841} is an apocalyptic number.

It is an amenable number.

3685357870841 is a deficient number, since it is larger than the sum of its proper divisors (1).

3685357870841 is an equidigital number, since it uses as much as digits as its factorization.

3685357870841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 135475200, while the sum is 65.

The spelling of 3685357870841 in words is "three trillion, six hundred eighty-five billion, three hundred fifty-seven million, eight hundred seventy thousand, eight hundred forty-one".