1968873820 has 24 divisors (see below), whose sum is σ = 4202418528. Its totient is φ = 774638400.

The previous prime is 1968873811. The next prime is 1968873827. The reversal of 1968873820 is 283788691.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1968873827) 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, 805696 + ... + 808135.

It is an arithmetic number, because the mean of its divisors is an integer number (175100772).

Almost surely, 2^1968873820 is an apocalyptic number.

1968873820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1968873820 is an abundant number, since it is smaller than the sum of its proper divisors (2233544708).

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

1968873820 is a wasteful number, since it uses less digits than its factorization.

1968873820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613901 (or 1613899 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 52.

The square root of 1968873820 is about 44371.9936446403. The cubic root of 1968873820 is about 1253.3507581766.

The spelling of 1968873820 in words is "one billion, nine hundred sixty-eight million, eight hundred seventy-three thousand, eight hundred twenty".