29381597197 has 2 divisors, whose sum is σ = 29381597198. Its totient is φ = 29381597196.

The previous prime is 29381597149. The next prime is 29381597213. The reversal of 29381597197 is 79179518392.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27831915241 + 1549681956 = 166829^2 + 39366^2 .

It is a cyclic number.

It is not a de Polignac number, because 29381597197 - 2¹¹ = 29381595149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29381597107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14690798598 + 14690798599.

It is an arithmetic number, because the mean of its divisors is an integer number (14690798599).

Almost surely, 2^29381597197 is an apocalyptic number.

It is an amenable number.

29381597197 is a deficient number, since it is larger than the sum of its proper divisors (1).

29381597197 is an equidigital number, since it uses as much as digits as its factorization.

29381597197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8573040, while the sum is 61.

The spelling of 29381597197 in words is "twenty-nine billion, three hundred eighty-one million, five hundred ninety-seven thousand, one hundred ninety-seven".