43544242337 has 2 divisors, whose sum is σ = 43544242338. Its totient is φ = 43544242336.

The previous prime is 43544242303. The next prime is 43544242373. The reversal of 43544242337 is 73324244534.

Together with next prime (43544242373) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38190539776 + 5353702561 = 195424^2 + 73169^2 .

It is a cyclic number.

It is not a de Polignac number, because 43544242337 - 2¹⁰ = 43544241313 is a prime.

It is a super-2 number, since 2×43544242337² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43544242294 and 43544242303.

It is not a weakly prime, because it can be changed into another prime (43544242037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21772121168 + 21772121169.

It is an arithmetic number, because the mean of its divisors is an integer number (21772121169).

Almost surely, 2^43544242337 is an apocalyptic number.

It is an amenable number.

43544242337 is a deficient number, since it is larger than the sum of its proper divisors (1).

43544242337 is an equidigital number, since it uses as much as digits as its factorization.

43544242337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 41.

The spelling of 43544242337 in words is "forty-three billion, five hundred forty-four million, two hundred forty-two thousand, three hundred thirty-seven".