23986553197 has 2 divisors, whose sum is σ = 23986553198. Its totient is φ = 23986553196.

The previous prime is 23986553179. The next prime is 23986553243. The reversal of 23986553197 is 79135568932.

Together with previous prime (23986553179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17125909956 + 6860643241 = 130866^2 + 82829^2 .

It is a cyclic number.

It is not a de Polignac number, because 23986553197 - 2¹⁵ = 23986520429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23986553147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11993276598 + 11993276599.

It is an arithmetic number, because the mean of its divisors is an integer number (11993276599).

Almost surely, 2^23986553197 is an apocalyptic number.

It is an amenable number.

23986553197 is a deficient number, since it is larger than the sum of its proper divisors (1).

23986553197 is an equidigital number, since it uses as much as digits as its factorization.

23986553197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12247200, while the sum is 58.

The spelling of 23986553197 in words is "twenty-three billion, nine hundred eighty-six million, five hundred fifty-three thousand, one hundred ninety-seven".