8076643898 has 16 divisors (see below), whose sum is σ = 12536501760. Its totient is φ = 3897894000.

The previous prime is 8076643891. The next prime is 8076643907. The reversal of 8076643898 is 8983466708.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8076643891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191423 + ... + 229773.

It is an arithmetic number, because the mean of its divisors is an integer number (783531360).

Almost surely, 2^8076643898 is an apocalyptic number.

8076643898 is a deficient number, since it is larger than the sum of its proper divisors (4459857862).

8076643898 is a wasteful number, since it uses less digits than its factorization.

8076643898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42013.

The product of its (nonzero) digits is 13934592, while the sum is 59.

The square root of 8076643898 is about 89870.1502057274. The cubic root of 8076643898 is about 2006.3667025432.

The spelling of 8076643898 in words is "eight billion, seventy-six million, six hundred forty-three thousand, eight hundred ninety-eight".