196967759681 has 16 divisors (see below), whose sum is σ = 245586168960. Its totient is φ = 153471386880.

The previous prime is 196967759657. The next prime is 196967759701. The reversal of 196967759681 is 186957769691.

It is a de Polignac number, because none of the positive numbers 2^k-196967759681 is a prime.

It is a super-2 number, since 2×196967759681² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 196967759599 and 196967759608.

It is not an unprimeable number, because it can be changed into a prime (196967759621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1244915 + ... + 1394183.

It is an arithmetic number, because the mean of its divisors is an integer number (15349135560).

Almost surely, 2^196967759681 is an apocalyptic number.

196967759681 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

196967759681 is a deficient number, since it is larger than the sum of its proper divisors (48618409279).

196967759681 is a wasteful number, since it uses less digits than its factorization.

196967759681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166424.

The product of its digits is 308629440, while the sum is 74.

The spelling of 196967759681 in words is "one hundred ninety-six billion, nine hundred sixty-seven million, seven hundred fifty-nine thousand, six hundred eighty-one".