20196280597 has 2 divisors, whose sum is σ = 20196280598. Its totient is φ = 20196280596.

The previous prime is 20196280579. The next prime is 20196280607. The reversal of 20196280597 is 79508269102.

Together with previous prime (20196280579) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19994242801 + 202037796 = 141401^2 + 14214^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20196280597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20196280597.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20196281597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10098140298 + 10098140299.

It is an arithmetic number, because the mean of its divisors is an integer number (10098140299).

Almost surely, 2^20196280597 is an apocalyptic number.

It is an amenable number.

20196280597 is a deficient number, since it is larger than the sum of its proper divisors (1).

20196280597 is an equidigital number, since it uses as much as digits as its factorization.

20196280597 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 49.

The spelling of 20196280597 in words is "twenty billion, one hundred ninety-six million, two hundred eighty thousand, five hundred ninety-seven".