11571401044771 has 2 divisors, whose sum is σ = 11571401044772. Its totient is φ = 11571401044770.

The previous prime is 11571401044759. The next prime is 11571401044807. The reversal of 11571401044771 is 17744010417511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11571401044771 - 2⁵ = 11571401044739 is a prime.

It is not a weakly prime, because it can be changed into another prime (11571401041771) 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, 5785700522385 + 5785700522386.

It is an arithmetic number, because the mean of its divisors is an integer number (5785700522386).

Almost surely, 2^{11571401044771} is an apocalyptic number.

11571401044771 is a deficient number, since it is larger than the sum of its proper divisors (1).

11571401044771 is an equidigital number, since it uses as much as digits as its factorization.

11571401044771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 109760, while the sum is 43.

The spelling of 11571401044771 in words is "eleven trillion, five hundred seventy-one billion, four hundred one million, forty-four thousand, seven hundred seventy-one".