11142077449 has 2 divisors, whose sum is σ = 11142077450. Its totient is φ = 11142077448.

The previous prime is 11142077437. The next prime is 11142077539. The reversal of 11142077449 is 94477024111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7611341049 + 3530736400 = 87243^2 + 59420^2 .

It is an emirp because it is prime and its reverse (94477024111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11142077449 - 2²⁷ = 11007859721 is a prime.

It is not a weakly prime, because it can be changed into another prime (11142477449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5571038724 + 5571038725.

It is an arithmetic number, because the mean of its divisors is an integer number (5571038725).

Almost surely, 2^11142077449 is an apocalyptic number.

It is an amenable number.

11142077449 is a deficient number, since it is larger than the sum of its proper divisors (1).

11142077449 is an equidigital number, since it uses as much as digits as its factorization.

11142077449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 40.

The spelling of 11142077449 in words is "eleven billion, one hundred forty-two million, seventy-seven thousand, four hundred forty-nine".