43813605629 has 2 divisors, whose sum is σ = 43813605630. Its totient is φ = 43813605628.

The previous prime is 43813605593. The next prime is 43813605643. The reversal of 43813605629 is 92650631834.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42220797529 + 1592808100 = 205477^2 + 39910^2 .

It is a cyclic number.

It is not a de Polignac number, because 43813605629 - 2²⁰ = 43812557053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43813665629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21906802814 + 21906802815.

It is an arithmetic number, because the mean of its divisors is an integer number (21906802815).

Almost surely, 2^43813605629 is an apocalyptic number.

It is an amenable number.

43813605629 is a deficient number, since it is larger than the sum of its proper divisors (1).

43813605629 is an equidigital number, since it uses as much as digits as its factorization.

43813605629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 47.

The spelling of 43813605629 in words is "forty-three billion, eight hundred thirteen million, six hundred five thousand, six hundred twenty-nine".