1968496686 has 24 divisors (see below), whose sum is σ = 4593159480. Its totient is φ = 605691216.

The previous prime is 1968496661. The next prime is 1968496687. The reversal of 1968496686 is 6866948691.

1968496686 is a `hidden beast` number, since 1 + 9 + 68 + 496 + 6 + 86 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1968496687) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4205956 + ... + 4206423.

It is an arithmetic number, because the mean of its divisors is an integer number (191381645).

Almost surely, 2^1968496686 is an apocalyptic number.

1968496686 is an abundant number, since it is smaller than the sum of its proper divisors (2624662794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1968496686 is a wasteful number, since it uses less digits than its factorization.

1968496686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8412400 (or 8412397 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 63.

The square root of 1968496686 is about 44367.7437560217. The cubic root of 1968496686 is about 1253.2707274227.

The spelling of 1968496686 in words is "one billion, nine hundred sixty-eight million, four hundred ninety-six thousand, six hundred eighty-six".