11838774511 has 2 divisors, whose sum is σ = 11838774512. Its totient is φ = 11838774510.

The previous prime is 11838774473. The next prime is 11838774529. The reversal of 11838774511 is 11547783811.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11838774511 - 2¹⁵ = 11838741743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11838174511) 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, 5919387255 + 5919387256.

It is an arithmetic number, because the mean of its divisors is an integer number (5919387256).

Almost surely, 2^11838774511 is an apocalyptic number.

11838774511 is a deficient number, since it is larger than the sum of its proper divisors (1).

11838774511 is an equidigital number, since it uses as much as digits as its factorization.

11838774511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 188160, while the sum is 46.

The spelling of 11838774511 in words is "eleven billion, eight hundred thirty-eight million, seven hundred seventy-four thousand, five hundred eleven".