43544225941 has 2 divisors, whose sum is σ = 43544225942. Its totient is φ = 43544225940.

The previous prime is 43544225911. The next prime is 43544225951. The reversal of 43544225941 is 14952244534.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27463449841 + 16080776100 = 165721^2 + 126810^2 .

It is a cyclic number.

It is not a de Polignac number, because 43544225941 - 2²¹ = 43542128789 is a prime.

It is a super-4 number, since 4×43544225941⁴ (a number of 44 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43544225911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21772112970 + 21772112971.

It is an arithmetic number, because the mean of its divisors is an integer number (21772112971).

Almost surely, 2^43544225941 is an apocalyptic number.

It is an amenable number.

43544225941 is a deficient number, since it is larger than the sum of its proper divisors (1).

43544225941 is an equidigital number, since it uses as much as digits as its factorization.

43544225941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 691200, while the sum is 43.

The spelling of 43544225941 in words is "forty-three billion, five hundred forty-four million, two hundred twenty-five thousand, nine hundred forty-one".