8680647819 has 8 divisors (see below), whose sum is σ = 12183365440. Its totient is φ = 5482514376.

The previous prime is 8680647803. The next prime is 8680647827. The reversal of 8680647819 is 9187460868.

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

It is not a de Polignac number, because 8680647819 - 2⁴ = 8680647803 is a prime.

It is a super-4 number, since 4×8680647819⁴ (a number of 41 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (57), and also a Moran number because the ratio is a prime number: 152292067 = 8680647819 / (8 + 6 + 8 + 0 + 6 + 4 + 7 + 8 + 1 + 9).

It is not an unprimeable number, because it can be changed into a prime (8680647889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76145977 + ... + 76146090.

It is an arithmetic number, because the mean of its divisors is an integer number (1522920680).

Almost surely, 2^8680647819 is an apocalyptic number.

8680647819 is a deficient number, since it is larger than the sum of its proper divisors (3502717621).

8680647819 is a wasteful number, since it uses less digits than its factorization.

8680647819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152292089.

The product of its (nonzero) digits is 4644864, while the sum is 57.

The square root of 8680647819 is about 93169.9941987762. The cubic root of 8680647819 is about 2055.1840099020.

The spelling of 8680647819 in words is "eight billion, six hundred eighty million, six hundred forty-seven thousand, eight hundred nineteen".