378820261822 has 8 divisors (see below), whose sum is σ = 568233005256. Its totient is φ = 189409260072.

The previous prime is 378820261819. The next prime is 378820261873. The reversal of 378820261822 is 228162028873.

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

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 619548 + ... + 1068400.

It is an arithmetic number, because the mean of its divisors is an integer number (71029125657).

Almost surely, 2^378820261822 is an apocalyptic number.

378820261822 is a deficient number, since it is larger than the sum of its proper divisors (189412743434).

378820261822 is a wasteful number, since it uses less digits than its factorization.

378820261822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870842.

The product of its (nonzero) digits is 1032192, while the sum is 49.

The spelling of 378820261822 in words is "three hundred seventy-eight billion, eight hundred twenty million, two hundred sixty-one thousand, eight hundred twenty-two".