11534645849 has 2 divisors, whose sum is σ = 11534645850. Its totient is φ = 11534645848.

The previous prime is 11534645839. The next prime is 11534645867. The reversal of 11534645849 is 94854643511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11525525449 + 9120400 = 107357^2 + 3020^2 .

It is an emirp because it is prime and its reverse (94854643511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11534645849 - 2⁸ = 11534645593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11534645797 and 11534645806.

It is not a weakly prime, because it can be changed into another prime (11534645839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5767322924 + 5767322925.

It is an arithmetic number, because the mean of its divisors is an integer number (5767322925).

Almost surely, 2^11534645849 is an apocalyptic number.

It is an amenable number.

11534645849 is a deficient number, since it is larger than the sum of its proper divisors (1).

11534645849 is an equidigital number, since it uses as much as digits as its factorization.

11534645849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2073600, while the sum is 50.

The spelling of 11534645849 in words is "eleven billion, five hundred thirty-four million, six hundred forty-five thousand, eight hundred forty-nine".