196510950893 has 2 divisors, whose sum is σ = 196510950894. Its totient is φ = 196510950892.

The previous prime is 196510950871. The next prime is 196510950929. The reversal of 196510950893 is 398059015691.

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., 138873984964 + 57636965929 = 372658^2 + 240077^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196510950893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196510950833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98255475446 + 98255475447.

It is an arithmetic number, because the mean of its divisors is an integer number (98255475447).

Almost surely, 2^196510950893 is an apocalyptic number.

It is an amenable number.

196510950893 is a deficient number, since it is larger than the sum of its proper divisors (1).

196510950893 is an equidigital number, since it uses as much as digits as its factorization.

196510950893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2624400, while the sum is 56.

The spelling of 196510950893 in words is "one hundred ninety-six billion, five hundred ten million, nine hundred fifty thousand, eight hundred ninety-three".