11544437441 has 2 divisors, whose sum is σ = 11544437442. Its totient is φ = 11544437440.

The previous prime is 11544437423. The next prime is 11544437483. The reversal of 11544437441 is 14473444511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7272507841 + 4271929600 = 85279^2 + 65360^2 .

It is a cyclic number.

It is not a de Polignac number, because 11544437441 - 2¹⁰ = 11544436417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11544437395 and 11544437404.

It is not a weakly prime, because it can be changed into another prime (11544437041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5772218720 + 5772218721.

It is an arithmetic number, because the mean of its divisors is an integer number (5772218721).

Almost surely, 2^11544437441 is an apocalyptic number.

It is an amenable number.

11544437441 is a deficient number, since it is larger than the sum of its proper divisors (1).

11544437441 is an equidigital number, since it uses as much as digits as its factorization.

11544437441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 107520, while the sum is 38.

The spelling of 11544437441 in words is "eleven billion, five hundred forty-four million, four hundred thirty-seven thousand, four hundred forty-one".