1968947026968 has 16 divisors (see below), whose sum is σ = 4922367567480. Its totient is φ = 656315675648.

The previous prime is 1968947026939. The next prime is 1968947026999. The reversal of 1968947026968 is 8696207498691.

It is a super-2 number, since 2×1968947026968² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1968947026968.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41019729705 + ... + 41019729752.

Almost surely, 2^{1968947026968} is an apocalyptic number.

It is an amenable number.

1968947026968 is an abundant number, since it is smaller than the sum of its proper divisors (2953420540512).

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

1968947026968 is a wasteful number, since it uses less digits than its factorization.

1968947026968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82039459466 (or 82039459462 counting only the distinct ones).

The product of its (nonzero) digits is 564350976, while the sum is 75.

The spelling of 1968947026968 in words is "one trillion, nine hundred sixty-eight billion, nine hundred forty-seven million, twenty-six thousand, nine hundred sixty-eight".