3685357874873 has 2 divisors, whose sum is σ = 3685357874874. Its totient is φ = 3685357874872.

The previous prime is 3685357874851. The next prime is 3685357874897. The reversal of 3685357874873 is 3784787535863.

3685357874873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3551521164304 + 133836710569 = 1884548^2 + 365837^2 .

It is a cyclic number.

It is not a de Polignac number, because 3685357874873 - 2⁸ = 3685357874617 is a prime.

It is a super-2 number, since 2×3685357874873² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3685357874873.

It is not a weakly prime, because it can be changed into another prime (3685357874843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1842678937436 + 1842678937437.

It is an arithmetic number, because the mean of its divisors is an integer number (1842678937437).

Almost surely, 2^{3685357874873} is an apocalyptic number.

It is an amenable number.

3685357874873 is a deficient number, since it is larger than the sum of its proper divisors (1).

3685357874873 is an equidigital number, since it uses as much as digits as its factorization.

3685357874873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2844979200, while the sum is 74.

The spelling of 3685357874873 in words is "three trillion, six hundred eighty-five billion, three hundred fifty-seven million, eight hundred seventy-four thousand, eight hundred seventy-three".