11236746449 has 2 divisors, whose sum is σ = 11236746450. Its totient is φ = 11236746448.

The previous prime is 11236746401. The next prime is 11236746457. The reversal of 11236746449 is 94464763211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7360438849 + 3876307600 = 85793^2 + 62260^2 .

It is a cyclic number.

It is not a de Polignac number, because 11236746449 - 2³² = 6941779153 is a prime.

It is a super-2 number, since 2×11236746449² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11236746949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5618373224 + 5618373225.

It is an arithmetic number, because the mean of its divisors is an integer number (5618373225).

Almost surely, 2^11236746449 is an apocalyptic number.

It is an amenable number.

11236746449 is a deficient number, since it is larger than the sum of its proper divisors (1).

11236746449 is an equidigital number, since it uses as much as digits as its factorization.

11236746449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 47.

The spelling of 11236746449 in words is "eleven billion, two hundred thirty-six million, seven hundred forty-six thousand, four hundred forty-nine".