29934405643 has 2 divisors, whose sum is σ = 29934405644. Its totient is φ = 29934405642.

The previous prime is 29934405577. The next prime is 29934405649. The reversal of 29934405643 is 34650443992.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 29934405643 - 2⁹ = 29934405131 is a prime.

It is not a weakly prime, because it can be changed into another prime (29934405649) 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, 14967202821 + 14967202822.

It is an arithmetic number, because the mean of its divisors is an integer number (14967202822).

Almost surely, 2^29934405643 is an apocalyptic number.

29934405643 is a deficient number, since it is larger than the sum of its proper divisors (1).

29934405643 is an equidigital number, since it uses as much as digits as its factorization.

29934405643 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 29934405643 in words is "twenty-nine billion, nine hundred thirty-four million, four hundred five thousand, six hundred forty-three".