43532218157 has 2 divisors, whose sum is σ = 43532218158. Its totient is φ = 43532218156.

The previous prime is 43532218109. The next prime is 43532218199. The reversal of 43532218157 is 75181223534.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35889786916 + 7642431241 = 189446^2 + 87421^2 .

It is a cyclic number.

It is not a de Polignac number, because 43532218157 - 2²⁶ = 43465109293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43532218057) 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, 21766109078 + 21766109079.

It is an arithmetic number, because the mean of its divisors is an integer number (21766109079).

Almost surely, 2^43532218157 is an apocalyptic number.

It is an amenable number.

43532218157 is a deficient number, since it is larger than the sum of its proper divisors (1).

43532218157 is an equidigital number, since it uses as much as digits as its factorization.

43532218157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 201600, while the sum is 41.

The spelling of 43532218157 in words is "forty-three billion, five hundred thirty-two million, two hundred eighteen thousand, one hundred fifty-seven".