29849158217 has 2 divisors, whose sum is σ = 29849158218. Its totient is φ = 29849158216.

The previous prime is 29849158181. The next prime is 29849158249. The reversal of 29849158217 is 71285194892.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25246349881 + 4602808336 = 158891^2 + 67844^2 .

It is a cyclic number.

It is not a de Polignac number, because 29849158217 - 2¹⁰ = 29849157193 is a prime.

It is not a weakly prime, because it can be changed into another prime (29849958217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14924579108 + 14924579109.

It is an arithmetic number, because the mean of its divisors is an integer number (14924579109).

Almost surely, 2^29849158217 is an apocalyptic number.

It is an amenable number.

29849158217 is a deficient number, since it is larger than the sum of its proper divisors (1).

29849158217 is an equidigital number, since it uses as much as digits as its factorization.

29849158217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2903040, while the sum is 56.

The spelling of 29849158217 in words is "twenty-nine billion, eight hundred forty-nine million, one hundred fifty-eight thousand, two hundred seventeen".