11542422077 has 2 divisors, whose sum is σ = 11542422078. Its totient is φ = 11542422076.

The previous prime is 11542422071. The next prime is 11542422121. The reversal of 11542422077 is 77022424511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6379855876 + 5162566201 = 79874^2 + 71851^2 .

It is an emirp because it is prime and its reverse (77022424511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11542422077 - 2¹⁸ = 11542159933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11542422071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5771211038 + 5771211039.

It is an arithmetic number, because the mean of its divisors is an integer number (5771211039).

Almost surely, 2^11542422077 is an apocalyptic number.

It is an amenable number.

11542422077 is a deficient number, since it is larger than the sum of its proper divisors (1).

11542422077 is an equidigital number, since it uses as much as digits as its factorization.

11542422077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31360, while the sum is 35.

Adding to 11542422077 its reverse (77022424511), we get a palindrome (88564846588).

The spelling of 11542422077 in words is "eleven billion, five hundred forty-two million, four hundred twenty-two thousand, seventy-seven".