11571924773 has 2 divisors, whose sum is σ = 11571924774. Its totient is φ = 11571924772.

The previous prime is 11571924733. The next prime is 11571924779. The reversal of 11571924773 is 37742917511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9956447524 + 1615477249 = 99782^2 + 40193^2 .

It is a cyclic number.

It is not a de Polignac number, because 11571924773 - 2²⁰ = 11570876197 is a prime.

It is a super-2 number, since 2×11571924773² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11571924779) 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, 5785962386 + 5785962387.

It is an arithmetic number, because the mean of its divisors is an integer number (5785962387).

Almost surely, 2^11571924773 is an apocalyptic number.

It is an amenable number.

11571924773 is a deficient number, since it is larger than the sum of its proper divisors (1).

11571924773 is an equidigital number, since it uses as much as digits as its factorization.

11571924773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 370440, while the sum is 47.

The spelling of 11571924773 in words is "eleven billion, five hundred seventy-one million, nine hundred twenty-four thousand, seven hundred seventy-three".