1378005768 has 48 divisors (see below), whose sum is σ = 3760614000. Its totient is φ = 455825760.

The previous prime is 1378005719. The next prime is 1378005773. The reversal of 1378005768 is 8675008731.

1378005768 is a `hidden beast` number, since 1 + 3 + 78 + 0 + 0 + 576 + 8 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63618 + ... + 82481.

It is an arithmetic number, because the mean of its divisors is an integer number (78346125).

Almost surely, 2^1378005768 is an apocalyptic number.

1378005768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1378005768 is an abundant number, since it is smaller than the sum of its proper divisors (2382608232).

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

1378005768 is a wasteful number, since it uses less digits than its factorization.

1378005768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146242 (or 146235 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 1378005768 is about 37121.5000774484. The cubic root of 1378005768 is about 1112.7997305088.

The spelling of 1378005768 in words is "one billion, three hundred seventy-eight million, five thousand, seven hundred sixty-eight".