3645811423 has 2 divisors, whose sum is σ = 3645811424. Its totient is φ = 3645811422.

The previous prime is 3645811387. The next prime is 3645811427. The reversal of 3645811423 is 3241185463.

It is a strong prime.

It is an emirp because it is prime and its reverse (3241185463) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3645811423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3645811427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1822905711 + 1822905712.

It is an arithmetic number, because the mean of its divisors is an integer number (1822905712).

Almost surely, 2^3645811423 is an apocalyptic number.

3645811423 is a deficient number, since it is larger than the sum of its proper divisors (1).

3645811423 is an equidigital number, since it uses as much as digits as its factorization.

3645811423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 37.

The square root of 3645811423 is about 60380.5550073863. Note that the first 3 decimals coincide. The cubic root of 3645811423 is about 1539.0925422038.

Adding to 3645811423 its reverse (3241185463), we get a palindrome (6886996886).

The spelling of 3645811423 in words is "three billion, six hundred forty-five million, eight hundred eleven thousand, four hundred twenty-three".