378952831765 has 8 divisors (see below), whose sum is σ = 481493009880. Its totient is φ = 285329190912.

The previous prime is 378952831759. The next prime is 378952831793. The reversal of 378952831765 is 567138259873.

It can be written as a sum of positive squares in 4 ways, for example, as 75582106084 + 303370725681 = 274922^2 + 550791^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 378952831765 - 2³ = 378952831757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 378952831697 and 378952831706.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2229134220 + ... + 2229134389.

It is an arithmetic number, because the mean of its divisors is an integer number (60186626235).

Almost surely, 2^378952831765 is an apocalyptic number.

It is an amenable number.

378952831765 is a deficient number, since it is larger than the sum of its proper divisors (102540178115).

378952831765 is a wasteful number, since it uses less digits than its factorization.

378952831765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4458268631.

The product of its digits is 76204800, while the sum is 64.

The spelling of 378952831765 in words is "three hundred seventy-eight billion, nine hundred fifty-two million, eight hundred thirty-one thousand, seven hundred sixty-five".