8682278521 has 16 divisors (see below), whose sum is σ = 9979877376. Its totient is φ = 7399089936.

The previous prime is 8682278519. The next prime is 8682278537. The reversal of 8682278521 is 1258722868.

It is not a de Polignac number, because 8682278521 - 2¹ = 8682278519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8682270521) 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 15 ways as a sum of consecutive naturals, for example, 1310800 + ... + 1317406.

It is an arithmetic number, because the mean of its divisors is an integer number (623742336).

Almost surely, 2^8682278521 is an apocalyptic number.

It is an amenable number.

8682278521 is a deficient number, since it is larger than the sum of its proper divisors (1297598855).

8682278521 is a wasteful number, since it uses less digits than its factorization.

8682278521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7668.

The product of its digits is 860160, while the sum is 49.

The square root of 8682278521 is about 93178.7450065733. The cubic root of 8682278521 is about 2055.3126939552.

The spelling of 8682278521 in words is "eight billion, six hundred eighty-two million, two hundred seventy-eight thousand, five hundred twenty-one".