196731821063 has 2 divisors, whose sum is σ = 196731821064. Its totient is φ = 196731821062.

The previous prime is 196731820997. The next prime is 196731821093. The reversal of 196731821063 is 360128137691.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 196731821063 - 2²⁰ = 196730772487 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 196731820999 and 196731821017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196731821093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98365910531 + 98365910532.

It is an arithmetic number, because the mean of its divisors is an integer number (98365910532).

Almost surely, 2^196731821063 is an apocalyptic number.

196731821063 is a deficient number, since it is larger than the sum of its proper divisors (1).

196731821063 is an equidigital number, since it uses as much as digits as its factorization.

196731821063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 47.

The spelling of 196731821063 in words is "one hundred ninety-six billion, seven hundred thirty-one million, eight hundred twenty-one thousand, sixty-three".