11557873837 has 2 divisors, whose sum is σ = 11557873838. Its totient is φ = 11557873836.

The previous prime is 11557873807. The next prime is 11557873849. The reversal of 11557873837 is 73837875511.

11557873837 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., 6062023881 + 5495849956 = 77859^2 + 74134^2 .

It is a cyclic number.

It is not a de Polignac number, because 11557873837 - 2⁷ = 11557873709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11557873807) 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, 5778936918 + 5778936919.

It is an arithmetic number, because the mean of its divisors is an integer number (5778936919).

Almost surely, 2^11557873837 is an apocalyptic number.

It is an amenable number.

11557873837 is a deficient number, since it is larger than the sum of its proper divisors (1).

11557873837 is an equidigital number, since it uses as much as digits as its factorization.

11557873837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4939200, while the sum is 55.

The spelling of 11557873837 in words is "eleven billion, five hundred fifty-seven million, eight hundred seventy-three thousand, eight hundred thirty-seven".