1968084378 has 160 divisors (see below), whose sum is σ = 5081674752. Its totient is φ = 564537600.

The previous prime is 1968084347. The next prime is 1968084409. The reversal of 1968084378 is 8734808691.

1968084378 is a `hidden beast` number, since 196 + 8 + 0 + 84 + 378 = 666.

It is an interprime number because it is at equal distance from previous prime (1968084347) and next prime (1968084409).

It is a super-2 number, since 2×1968084378² = 7746712237855293768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon 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 79 ways as a sum of consecutive naturals, for example, 1985463 + ... + 1986453.

Almost surely, 2^1968084378 is an apocalyptic number.

1968084378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1968084378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2540837376).

1968084378 is an abundant number, since it is smaller than the sum of its proper divisors (3113590374).

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

1968084378 is a wasteful number, since it uses less digits than its factorization.

1968084378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082 (or 1073 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The square root of 1968084378 is about 44363.0970289496. The cubic root of 1968084378 is about 1253.1832207766.

The spelling of 1968084378 in words is "one billion, nine hundred sixty-eight million, eighty-four thousand, three hundred seventy-eight".