1111011749557 has 2 divisors, whose sum is σ = 1111011749558. Its totient is φ = 1111011749556.

The previous prime is 1111011749539. The next prime is 1111011749599. The reversal of 1111011749557 is 7559471101111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1071057336561 + 39954412996 = 1034919^2 + 199886^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111011749557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111011749527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555505874778 + 555505874779.

It is an arithmetic number, because the mean of its divisors is an integer number (555505874779).

Almost surely, 2^{1111011749557} is an apocalyptic number.

It is an amenable number.

1111011749557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111011749557 is an equidigital number, since it uses as much as digits as its factorization.

1111011749557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44100, while the sum is 43.

The spelling of 1111011749557 in words is "one trillion, one hundred eleven billion, eleven million, seven hundred forty-nine thousand, five hundred fifty-seven".