11757743444 has 12 divisors (see below), whose sum is σ = 20577398100. Its totient is φ = 5878486848.

The previous prime is 11757743443. The next prime is 11757743531. The reversal of 11757743444 is 44434775711.

It can be written as a sum of positive squares in 2 ways, for example, as 5664067600 + 6093675844 = 75260^2 + 78062^2 .

It is a super-2 number, since 2×11757743444² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11757743443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20939 + ... + 154770.

It is an arithmetic number, because the mean of its divisors is an integer number (1714783175).

Almost surely, 2^11757743444 is an apocalyptic number.

It is an amenable number.

11757743444 is a deficient number, since it is larger than the sum of its proper divisors (8819654656).

11757743444 is a wasteful number, since it uses less digits than its factorization.

11757743444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192442 (or 192440 counting only the distinct ones).

The product of its digits is 1317120, while the sum is 47.

The spelling of 11757743444 in words is "eleven billion, seven hundred fifty-seven million, seven hundred forty-three thousand, four hundred forty-four".