8072187782 has 8 divisors (see below), whose sum is σ = 12115683216. Its totient is φ = 4033626712.

The previous prime is 8072187779. The next prime is 8072187811. The reversal of 8072187782 is 2877812708.

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

It is a self number, because there is not a number n which added to its sum of digits gives 8072187782.

It is a congruent number.

It is an unprimeable number.

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, 1229498 + ... + 1236045.

It is an arithmetic number, because the mean of its divisors is an integer number (1514460402).

Almost surely, 2^8072187782 is an apocalyptic number.

8072187782 is a deficient number, since it is larger than the sum of its proper divisors (4043495434).

8072187782 is a wasteful number, since it uses less digits than its factorization.

8072187782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2467182.

The product of its (nonzero) digits is 702464, while the sum is 50.

The square root of 8072187782 is about 89845.3548159280. The cubic root of 8072187782 is about 2005.9976446505.

The spelling of 8072187782 in words is "eight billion, seventy-two million, one hundred eighty-seven thousand, seven hundred eighty-two".