24390195197 has 2 divisors, whose sum is σ = 24390195198. Its totient is φ = 24390195196.

The previous prime is 24390195107. The next prime is 24390195227. The reversal of 24390195197 is 79159109342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23435323396 + 954871801 = 153086^2 + 30901^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24390195197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24390195107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12195097598 + 12195097599.

It is an arithmetic number, because the mean of its divisors is an integer number (12195097599).

Almost surely, 2^24390195197 is an apocalyptic number.

It is an amenable number.

24390195197 is a deficient number, since it is larger than the sum of its proper divisors (1).

24390195197 is an equidigital number, since it uses as much as digits as its factorization.

24390195197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 612360, while the sum is 50.

The spelling of 24390195197 in words is "twenty-four billion, three hundred ninety million, one hundred ninety-five thousand, one hundred ninety-seven".