29881769482091 has 2 divisors, whose sum is σ = 29881769482092. Its totient is φ = 29881769482090.

The previous prime is 29881769482031. The next prime is 29881769482093. The reversal of 29881769482091 is 19028496718892.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 29881769482091 - 2²⁶ = 29881702373227 is a prime.

It is a Sophie Germain prime.

Together with 29881769482093, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (29881769482093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14940884741045 + 14940884741046.

It is an arithmetic number, because the mean of its divisors is an integer number (14940884741046).

Almost surely, 2^{29881769482091} is an apocalyptic number.

29881769482091 is a deficient number, since it is larger than the sum of its proper divisors (1).

29881769482091 is an equidigital number, since it uses as much as digits as its factorization.

29881769482091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 250822656, while the sum is 74.

The spelling of 29881769482091 in words is "twenty-nine trillion, eight hundred eighty-one billion, seven hundred sixty-nine million, four hundred eighty-two thousand, ninety-one".