29800872191 has 2 divisors, whose sum is σ = 29800872192. Its totient is φ = 29800872190.

The previous prime is 29800872169. The next prime is 29800872253. The reversal of 29800872191 is 19127800892.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 29800872191 - 2²² = 29796677887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29800872131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14900436095 + 14900436096.

It is an arithmetic number, because the mean of its divisors is an integer number (14900436096).

Almost surely, 2^29800872191 is an apocalyptic number.

29800872191 is a deficient number, since it is larger than the sum of its proper divisors (1).

29800872191 is an equidigital number, since it uses as much as digits as its factorization.

29800872191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 47.

The spelling of 29800872191 in words is "twenty-nine billion, eight hundred million, eight hundred seventy-two thousand, one hundred ninety-one".