11178275477 has 2 divisors, whose sum is σ = 11178275478. Its totient is φ = 11178275476.

The previous prime is 11178275447. The next prime is 11178275497. The reversal of 11178275477 is 77457287111.

11178275477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11019540676 + 158734801 = 104974^2 + 12599^2 .

It is a cyclic number.

It is not a de Polignac number, because 11178275477 - 2⁶ = 11178275413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11178275447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5589137738 + 5589137739.

It is an arithmetic number, because the mean of its divisors is an integer number (5589137739).

Almost surely, 2^11178275477 is an apocalyptic number.

It is an amenable number.

11178275477 is a deficient number, since it is larger than the sum of its proper divisors (1).

11178275477 is an equidigital number, since it uses as much as digits as its factorization.

11178275477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 768320, while the sum is 50.

The spelling of 11178275477 in words is "eleven billion, one hundred seventy-eight million, two hundred seventy-five thousand, four hundred seventy-seven".