378855064685 has 8 divisors (see below), whose sum is σ = 455975118456. Its totient is φ = 302184691200.

The previous prime is 378855064681. The next prime is 378855064699. The reversal of 378855064685 is 586460558873.

It can be written as a sum of positive squares in 4 ways, for example, as 5208941929 + 373646122756 = 72173^2 + 611266^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 378855064685 - 2² = 378855064681 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378855064681) 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 7 ways as a sum of consecutive naturals, for example, 112418216 + ... + 112421585.

It is an arithmetic number, because the mean of its divisors is an integer number (56996889807).

Almost surely, 2^378855064685 is an apocalyptic number.

It is an amenable number.

378855064685 is a deficient number, since it is larger than the sum of its proper divisors (77120053771).

378855064685 is a wasteful number, since it uses less digits than its factorization.

378855064685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224840143.

The product of its (nonzero) digits is 193536000, while the sum is 65.

The spelling of 378855064685 in words is "three hundred seventy-eight billion, eight hundred fifty-five million, sixty-four thousand, six hundred eighty-five".