1578368605378 has 32 divisors (see below), whose sum is σ = 2509310643840. Its totient is φ = 742514532480.

The previous prime is 1578368605349. The next prime is 1578368605403. The reversal of 1578368605378 is 8735068638751.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4955926 + ... + 5264782.

It is an arithmetic number, because the mean of its divisors is an integer number (78415957620).

Almost surely, 2^{1578368605378} is an apocalyptic number.

1578368605378 is a deficient number, since it is larger than the sum of its proper divisors (930942038462).

1578368605378 is a wasteful number, since it uses less digits than its factorization.

1578368605378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309802.

The product of its (nonzero) digits is 203212800, while the sum is 67.

The spelling of 1578368605378 in words is "one trillion, five hundred seventy-eight billion, three hundred sixty-eight million, six hundred five thousand, three hundred seventy-eight".