43507203473 has 2 divisors, whose sum is σ = 43507203474. Its totient is φ = 43507203472.

The previous prime is 43507203449. The next prime is 43507203479. The reversal of 43507203473 is 37430270534.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40227121489 + 3280081984 = 200567^2 + 57272^2 .

It is a cyclic number.

It is not a de Polignac number, because 43507203473 - 2¹² = 43507199377 is a prime.

It is not a weakly prime, because it can be changed into another prime (43507203479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21753601736 + 21753601737.

It is an arithmetic number, because the mean of its divisors is an integer number (21753601737).

Almost surely, 2^43507203473 is an apocalyptic number.

It is an amenable number.

43507203473 is a deficient number, since it is larger than the sum of its proper divisors (1).

43507203473 is an equidigital number, since it uses as much as digits as its factorization.

43507203473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211680, while the sum is 38.

The spelling of 43507203473 in words is "forty-three billion, five hundred seven million, two hundred three thousand, four hundred seventy-three".