196471648253 has 2 divisors, whose sum is σ = 196471648254. Its totient is φ = 196471648252.

The previous prime is 196471648249. The next prime is 196471648279. The reversal of 196471648253 is 352846174691.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163884899929 + 32586748324 = 404827^2 + 180518^2 .

It is a cyclic number.

It is not a de Polignac number, because 196471648253 - 2² = 196471648249 is a prime.

It is a super-2 number, since 2×196471648253² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196471648453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98235824126 + 98235824127.

It is an arithmetic number, because the mean of its divisors is an integer number (98235824127).

Almost surely, 2^196471648253 is an apocalyptic number.

It is an amenable number.

196471648253 is a deficient number, since it is larger than the sum of its proper divisors (1).

196471648253 is an equidigital number, since it uses as much as digits as its factorization.

196471648253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8709120, while the sum is 56.

The spelling of 196471648253 in words is "one hundred ninety-six billion, four hundred seventy-one million, six hundred forty-eight thousand, two hundred fifty-three".