196486689751641 has 27 divisors (see below), whose sum is σ = 286074236338293. Its totient is φ = 129956167930680.

The previous prime is 196486689751631. The next prime is 196486689751669. The reversal of 196486689751641 is 146157986684691.

The square root of 196486689751641 is 14017371.

It is a perfect power (a square), and thus also a powerful number.

196486689751641 is a `hidden beast` number, since 1 + 9 + 6 + 4 + 8 + 6 + 6 + 8 + 97 + 516 + 4 + 1 = 666.

It is not a de Polignac number, because 196486689751641 - 2²³ = 196486681363033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (196486689751631) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 5340599956 + ... + 5340636746.

Almost surely, 2^{196486689751641} is an apocalyptic number.

196486689751641 is the 14017371-st square number.

196486689751641 is the 7008686-th centered octagonal number.

It is an amenable number.

196486689751641 is a deficient number, since it is larger than the sum of its proper divisors (89587546586652).

196486689751641 is an frugal number, since it uses more digits than its factorization.

196486689751641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73842 (or 36921 counting only the distinct ones).

The product of its digits is 3762339840, while the sum is 81.

The spelling of 196486689751641 in words is "one hundred ninety-six trillion, four hundred eighty-six billion, six hundred eighty-nine million, seven hundred fifty-one thousand, six hundred forty-one".