2195980197799 has 2 divisors, whose sum is σ = 2195980197800. Its totient is φ = 2195980197798.

The previous prime is 2195980197751. The next prime is 2195980197881. The reversal of 2195980197799 is 9977910895912.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2195980197799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2195980197899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1097990098899 + 1097990098900.

It is an arithmetic number, because the mean of its divisors is an integer number (1097990098900).

Almost surely, 2^{2195980197799} is an apocalyptic number.

2195980197799 is a deficient number, since it is larger than the sum of its proper divisors (1).

2195980197799 is an equidigital number, since it uses as much as digits as its factorization.

2195980197799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 231472080, while the sum is 76.

The spelling of 2195980197799 in words is "two trillion, one hundred ninety-five billion, nine hundred eighty million, one hundred ninety-seven thousand, seven hundred ninety-nine".