378781424679 has 16 divisors (see below), whose sum is σ = 577267443200. Its totient is φ = 216417765600.

The previous prime is 378781424603. The next prime is 378781424701. The reversal of 378781424679 is 976424187873.

It is not a de Polignac number, because 378781424679 - 2⁷ = 378781424551 is a prime.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378781424279) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1036147 + ... + 1353204.

It is an arithmetic number, because the mean of its divisors is an integer number (36079215200).

Almost surely, 2^378781424679 is an apocalyptic number.

378781424679 is a deficient number, since it is larger than the sum of its proper divisors (198486018521).

378781424679 is a wasteful number, since it uses less digits than its factorization.

378781424679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396910.

The product of its digits is 113799168, while the sum is 66.

The spelling of 378781424679 in words is "three hundred seventy-eight billion, seven hundred eighty-one million, four hundred twenty-four thousand, six hundred seventy-nine".