3678366205123 has 2 divisors, whose sum is σ = 3678366205124. Its totient is φ = 3678366205122.

The previous prime is 3678366205057. The next prime is 3678366205133. The reversal of 3678366205123 is 3215026638763.

3678366205123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3678366205123 is a prime.

It is a super-2 number, since 2×3678366205123² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3678366205133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1839183102561 + 1839183102562.

It is an arithmetic number, because the mean of its divisors is an integer number (1839183102562).

Almost surely, 2^{3678366205123} is an apocalyptic number.

3678366205123 is a deficient number, since it is larger than the sum of its proper divisors (1).

3678366205123 is an equidigital number, since it uses as much as digits as its factorization.

3678366205123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6531840, while the sum is 52.

The spelling of 3678366205123 in words is "three trillion, six hundred seventy-eight billion, three hundred sixty-six million, two hundred five thousand, one hundred twenty-three".