1968893956 has 24 divisors (see below), whose sum is σ = 3543372000. Its totient is φ = 956877504.

The previous prime is 1968893951. The next prime is 1968893957. The reversal of 1968893956 is 6593988691.

It is a happy number.

It is a hoax number, since the sum of its digits (64) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1968893951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25866 + ... + 67873.

It is an arithmetic number, because the mean of its divisors is an integer number (147640500).

Almost surely, 2^1968893956 is an apocalyptic number.

It is an amenable number.

1968893956 is a deficient number, since it is larger than the sum of its proper divisors (1574478044).

1968893956 is a wasteful number, since it uses less digits than its factorization.

1968893956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93891 (or 93889 counting only the distinct ones).

The product of its digits is 25194240, while the sum is 64.

The square root of 1968893956 is about 44372.2205439394. The cubic root of 1968893956 is about 1253.3550309042.

The spelling of 1968893956 in words is "one billion, nine hundred sixty-eight million, eight hundred ninety-three thousand, nine hundred fifty-six".