196543694487 has 48 divisors (see below), whose sum is σ = 326284449792. Its totient is φ = 102967225920.

The previous prime is 196543694471. The next prime is 196543694497. The reversal of 196543694487 is 784496345691.

It is not a de Polignac number, because 196543694487 - 2⁴ = 196543694471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196543694467) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 183148 + ... + 653169.

It is an arithmetic number, because the mean of its divisors is an integer number (6797592704).

Almost surely, 2^196543694487 is an apocalyptic number.

196543694487 is a deficient number, since it is larger than the sum of its proper divisors (129740755305).

196543694487 is a wasteful number, since it uses less digits than its factorization.

196543694487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836396 (or 836377 counting only the distinct ones).

The product of its digits is 156764160, while the sum is 66.

The spelling of 196543694487 in words is "one hundred ninety-six billion, five hundred forty-three million, six hundred ninety-four thousand, four hundred eighty-seven".