3645978359 has 2 divisors, whose sum is σ = 3645978360. Its totient is φ = 3645978358.

The previous prime is 3645978317. The next prime is 3645978367. The reversal of 3645978359 is 9538795463.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3645978359 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 3645978298 and 3645978307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3645978379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1822989179 + 1822989180.

It is an arithmetic number, because the mean of its divisors is an integer number (1822989180).

Almost surely, 2^3645978359 is an apocalyptic number.

3645978359 is a deficient number, since it is larger than the sum of its proper divisors (1).

3645978359 is an equidigital number, since it uses as much as digits as its factorization.

3645978359 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24494400, while the sum is 59.

The square root of 3645978359 is about 60381.9373571269. The cubic root of 3645978359 is about 1539.1160327249.

The spelling of 3645978359 in words is "three billion, six hundred forty-five million, nine hundred seventy-eight thousand, three hundred fifty-nine".