1968879856 has 20 divisors (see below), whose sum is σ = 3980562192. Its totient is φ = 941638016.

The previous prime is 1968879823. The next prime is 1968879911. The reversal of 1968879856 is 6589788691.

It is a junction number, because it is equal to n+sod(n) for n = 1968879791 and 1968879800.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2674741 + ... + 2675476.

Almost surely, 2^1968879856 is an apocalyptic number.

1968879856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1968879856 is an abundant number, since it is smaller than the sum of its proper divisors (2011682336).

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

1968879856 is a wasteful number, since it uses less digits than its factorization.

1968879856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5350248 (or 5350242 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 67.

The square root of 1968879856 is about 44372.0616604638. The cubic root of 1968879856 is about 1253.3520389794.

The spelling of 1968879856 in words is "one billion, nine hundred sixty-eight million, eight hundred seventy-nine thousand, eight hundred fifty-six".