1968633516 has 24 divisors (see below), whose sum is σ = 4594287600. Its totient is φ = 656095552.

The previous prime is 1968633497. The next prime is 1968633533. The reversal of 1968633516 is 6153368691.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82510 + ... + 103658.

It is an arithmetic number, because the mean of its divisors is an integer number (191428650).

Almost surely, 2^1968633516 is an apocalyptic number.

It is an amenable number.

1968633516 is an abundant number, since it is smaller than the sum of its proper divisors (2625654084).

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

1968633516 is a wasteful number, since it uses less digits than its factorization.

1968633516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28913 (or 28911 counting only the distinct ones).

The product of its digits is 699840, while the sum is 48.

The square root of 1968633516 is about 44369.2857278546. The cubic root of 1968633516 is about 1253.2997649892.

The spelling of 1968633516 in words is "one billion, nine hundred sixty-eight million, six hundred thirty-three thousand, five hundred sixteen".