29663634541 has 2 divisors, whose sum is σ = 29663634542. Its totient is φ = 29663634540.

The previous prime is 29663634467. The next prime is 29663634557. The reversal of 29663634541 is 14543636692.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19250452516 + 10413182025 = 138746^2 + 102045^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29663634541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29663634241) 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, 14831817270 + 14831817271.

It is an arithmetic number, because the mean of its divisors is an integer number (14831817271).

Almost surely, 2^29663634541 is an apocalyptic number.

It is an amenable number.

29663634541 is a deficient number, since it is larger than the sum of its proper divisors (1).

29663634541 is an equidigital number, since it uses as much as digits as its factorization.

29663634541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2799360, while the sum is 49.

The spelling of 29663634541 in words is "twenty-nine billion, six hundred sixty-three million, six hundred thirty-four thousand, five hundred forty-one".