29985776697197 has 2 divisors, whose sum is σ = 29985776697198. Its totient is φ = 29985776697196.

The previous prime is 29985776697169. The next prime is 29985776697271. The reversal of 29985776697197 is 79179667758992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29902895469316 + 82881227881 = 5468354^2 + 287891^2 .

It is a cyclic number.

It is not a de Polignac number, because 29985776697197 - 2²⁶ = 29985709588333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29985776697137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14992888348598 + 14992888348599.

It is an arithmetic number, because the mean of its divisors is an integer number (14992888348599).

Almost surely, 2^{29985776697197} is an apocalyptic number.

It is an amenable number.

29985776697197 is a deficient number, since it is larger than the sum of its proper divisors (1).

29985776697197 is an equidigital number, since it uses as much as digits as its factorization.

29985776697197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45368527680, while the sum is 92.

The spelling of 29985776697197 in words is "twenty-nine trillion, nine hundred eighty-five billion, seven hundred seventy-six million, six hundred ninety-seven thousand, one hundred ninety-seven".