3645326497 has 2 divisors, whose sum is σ = 3645326498. Its totient is φ = 3645326496.

The previous prime is 3645326483. The next prime is 3645326521. The reversal of 3645326497 is 7946235463.

3645326497 is digitally balanced in base 3, 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., 3257669776 + 387656721 = 57076^2 + 19689^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3645326497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3645326497.

It is not a weakly prime, because it can be changed into another prime (3645326417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1822663248 + 1822663249.

It is an arithmetic number, because the mean of its divisors is an integer number (1822663249).

Almost surely, 2^3645326497 is an apocalyptic number.

It is an amenable number.

3645326497 is a deficient number, since it is larger than the sum of its proper divisors (1).

3645326497 is an equidigital number, since it uses as much as digits as its factorization.

3645326497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3265920, while the sum is 49.

The square root of 3645326497 is about 60376.5392930068. The cubic root of 3645326497 is about 1539.0243014204.

The spelling of 3645326497 in words is "three billion, six hundred forty-five million, three hundred twenty-six thousand, four hundred ninety-seven".