43601222057 has 2 divisors, whose sum is σ = 43601222058. Its totient is φ = 43601222056.

The previous prime is 43601222029. The next prime is 43601222083. The reversal of 43601222057 is 75022210634.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39573542761 + 4027679296 = 198931^2 + 63464^2 .

It is a cyclic number.

It is not a de Polignac number, because 43601222057 - 2²⁰ = 43600173481 is a prime.

It is a super-2 number, since 2×43601222057² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43601222657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21800611028 + 21800611029.

It is an arithmetic number, because the mean of its divisors is an integer number (21800611029).

Almost surely, 2^43601222057 is an apocalyptic number.

It is an amenable number.

43601222057 is a deficient number, since it is larger than the sum of its proper divisors (1).

43601222057 is an equidigital number, since it uses as much as digits as its factorization.

43601222057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 32.

The spelling of 43601222057 in words is "forty-three billion, six hundred one million, two hundred twenty-two thousand, fifty-seven".