378832816823 has 4 divisors (see below), whose sum is σ = 389071541640. Its totient is φ = 368594092008.

The previous prime is 378832816771. The next prime is 378832816877. The reversal of 378832816823 is 328618238873.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 378832816823 - 2¹⁶ = 378832751287 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 (378832816883) 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 3 ways as a sum of consecutive naturals, for example, 5119362353 + ... + 5119362426.

It is an arithmetic number, because the mean of its divisors is an integer number (97267885410).

Almost surely, 2^378832816823 is an apocalyptic number.

378832816823 is a deficient number, since it is larger than the sum of its proper divisors (10238724817).

378832816823 is a wasteful number, since it uses less digits than its factorization.

378832816823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10238724816.

The product of its digits is 18579456, while the sum is 59.

The spelling of 378832816823 in words is "three hundred seventy-eight billion, eight hundred thirty-two million, eight hundred sixteen thousand, eight hundred twenty-three".