43044220357 has 2 divisors, whose sum is σ = 43044220358. Its totient is φ = 43044220356.

The previous prime is 43044220309. The next prime is 43044220451. The reversal of 43044220357 is 75302244034.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26557917156 + 16486303201 = 162966^2 + 128399^2 .

It is a cyclic number.

It is not a de Polignac number, because 43044220357 - 2¹¹ = 43044218309 is a prime.

It is a super-2 number, since 2×43044220357² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43044220057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21522110178 + 21522110179.

It is an arithmetic number, because the mean of its divisors is an integer number (21522110179).

Almost surely, 2^43044220357 is an apocalyptic number.

It is an amenable number.

43044220357 is a deficient number, since it is larger than the sum of its proper divisors (1).

43044220357 is an equidigital number, since it uses as much as digits as its factorization.

43044220357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 34.

The spelling of 43044220357 in words is "forty-three billion, forty-four million, two hundred twenty thousand, three hundred fifty-seven".