29191430897 has 2 divisors, whose sum is σ = 29191430898. Its totient is φ = 29191430896.

The previous prime is 29191430893. The next prime is 29191430909. The reversal of 29191430897 is 79803419192.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17998637281 + 11192793616 = 134159^2 + 105796^2 .

It is a cyclic number.

It is not a de Polignac number, because 29191430897 - 2² = 29191430893 is a prime.

It is not a weakly prime, because it can be changed into another prime (29191430893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14595715448 + 14595715449.

It is an arithmetic number, because the mean of its divisors is an integer number (14595715449).

Almost surely, 2^29191430897 is an apocalyptic number.

It is an amenable number.

29191430897 is a deficient number, since it is larger than the sum of its proper divisors (1).

29191430897 is an equidigital number, since it uses as much as digits as its factorization.

29191430897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 53.

The spelling of 29191430897 in words is "twenty-nine billion, one hundred ninety-one million, four hundred thirty thousand, eight hundred ninety-seven".