3645138641099 has 2 divisors, whose sum is σ = 3645138641100. Its totient is φ = 3645138641098.

The previous prime is 3645138641077. The next prime is 3645138641107. The reversal of 3645138641099 is 9901468315463.

It is a strong prime.

It is an emirp because it is prime and its reverse (9901468315463) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3645138641099 - 2²⁴ = 3645121863883 is a prime.

It is not a weakly prime, because it can be changed into another prime (3645138641399) 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, 1822569320549 + 1822569320550.

It is an arithmetic number, because the mean of its divisors is an integer number (1822569320550).

Almost surely, 2^{3645138641099} is an apocalyptic number.

3645138641099 is a deficient number, since it is larger than the sum of its proper divisors (1).

3645138641099 is an equidigital number, since it uses as much as digits as its factorization.

3645138641099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16796160, while the sum is 59.

The spelling of 3645138641099 in words is "three trillion, six hundred forty-five billion, one hundred thirty-eight million, six hundred forty-one thousand, ninety-nine".