82378785382 has 4 divisors (see below), whose sum is σ = 123568178076. Its totient is φ = 41189392690.

The previous prime is 82378785373. The next prime is 82378785389. The reversal of 82378785382 is 28358787328.

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

It is a self number, because there is not a number n which added to its sum of digits gives 82378785382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82378785389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20594696344 + ... + 20594696347.

It is an arithmetic number, because the mean of its divisors is an integer number (30892044519).

Almost surely, 2^82378785382 is an apocalyptic number.

82378785382 is a deficient number, since it is larger than the sum of its proper divisors (41189392694).

82378785382 is a wasteful number, since it uses less digits than its factorization.

82378785382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41189392693.

The product of its digits is 36126720, while the sum is 61.

The spelling of 82378785382 in words is "eighty-two billion, three hundred seventy-eight million, seven hundred eighty-five thousand, three hundred eighty-two".