196131691363 has 2 divisors, whose sum is σ = 196131691364. Its totient is φ = 196131691362.

The previous prime is 196131691337. The next prime is 196131691391. The reversal of 196131691363 is 363196131691.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 196131691363 - 2¹³ = 196131683171 is a prime.

It is a super-2 number, since 2×196131691363² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (196131691313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98065845681 + 98065845682.

It is an arithmetic number, because the mean of its divisors is an integer number (98065845682).

Almost surely, 2^196131691363 is an apocalyptic number.

196131691363 is a deficient number, since it is larger than the sum of its proper divisors (1).

196131691363 is an equidigital number, since it uses as much as digits as its factorization.

196131691363 is an evil number, because the sum of its binary digits is even.

The product of its digits is 472392, while the sum is 49.

The spelling of 196131691363 in words is "one hundred ninety-six billion, one hundred thirty-one million, six hundred ninety-one thousand, three hundred sixty-three".