11427147749 has 2 divisors, whose sum is σ = 11427147750. Its totient is φ = 11427147748.

The previous prime is 11427147701. The next prime is 11427147779. The reversal of 11427147749 is 94774172411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11385957025 + 41190724 = 106705^2 + 6418^2 .

It is an emirp because it is prime and its reverse (94774172411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11427147749 - 2⁸ = 11427147493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11427147779) 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, 5713573874 + 5713573875.

It is an arithmetic number, because the mean of its divisors is an integer number (5713573875).

Almost surely, 2^11427147749 is an apocalyptic number.

It is an amenable number.

11427147749 is a deficient number, since it is larger than the sum of its proper divisors (1).

11427147749 is an equidigital number, since it uses as much as digits as its factorization.

11427147749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 395136, while the sum is 47.

The spelling of 11427147749 in words is "eleven billion, four hundred twenty-seven million, one hundred forty-seven thousand, seven hundred forty-nine".