43676534042261 has 2 divisors, whose sum is σ = 43676534042262. Its totient is φ = 43676534042260.

The previous prime is 43676534042257. The next prime is 43676534042321. The reversal of 43676534042261 is 16224043567634.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24004914069361 + 19671619972900 = 4899481^2 + 4435270^2 .

It is a cyclic number.

It is not a de Polignac number, because 43676534042261 - 2² = 43676534042257 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43676534042201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21838267021130 + 21838267021131.

It is an arithmetic number, because the mean of its divisors is an integer number (21838267021131).

Almost surely, 2^{43676534042261} is an apocalyptic number.

It is an amenable number.

43676534042261 is a deficient number, since it is larger than the sum of its proper divisors (1).

43676534042261 is an equidigital number, since it uses as much as digits as its factorization.

43676534042261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17418240, while the sum is 53.

The spelling of 43676534042261 in words is "forty-three trillion, six hundred seventy-six billion, five hundred thirty-four million, forty-two thousand, two hundred sixty-one".