11815441741 has 2 divisors, whose sum is σ = 11815441742. Its totient is φ = 11815441740.

The previous prime is 11815441733. The next prime is 11815441753. The reversal of 11815441741 is 14714451811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7611864516 + 4203577225 = 87246^2 + 64835^2 .

It is a cyclic number.

It is not a de Polignac number, because 11815441741 - 2³ = 11815441733 is a prime.

It is a super-2 number, since 2×11815441741² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11815441741.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11815442741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5907720870 + 5907720871.

It is an arithmetic number, because the mean of its divisors is an integer number (5907720871).

Almost surely, 2^11815441741 is an apocalyptic number.

It is an amenable number.

11815441741 is a deficient number, since it is larger than the sum of its proper divisors (1).

11815441741 is an equidigital number, since it uses as much as digits as its factorization.

11815441741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17920, while the sum is 37.

It can be divided in two parts, 118154 and 41741, that added together give a triangular number (159895 = T₅₆₅).

The spelling of 11815441741 in words is "eleven billion, eight hundred fifteen million, four hundred forty-one thousand, seven hundred forty-one".