8551678464 has 320 divisors, whose sum is σ = 29383833600. Its totient is φ = 2405044224.

The previous prime is 8551678459. The next prime is 8551678483. The reversal of 8551678464 is 4648761558.

8551678464 is a `hidden beast` number, since 8 + 551 + 6 + 7 + 84 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 8551678464.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6482797 + ... + 6484115.

It is an arithmetic number, because the mean of its divisors is an integer number (91824480).

Almost surely, 2^8551678464 is an apocalyptic number.

8551678464 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8551678464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14691916800).

8551678464 is an abundant number, since it is smaller than the sum of its proper divisors (20832155136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8551678464 is a wasteful number, since it uses less digits than its factorization.

8551678464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420 (or 1398 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 54.

The square root of 8551678464 is about 92475.2856929893. The cubic root of 8551678464 is about 2044.9551514446.

The spelling of 8551678464 in words is "eight billion, five hundred fifty-one million, six hundred seventy-eight thousand, four hundred sixty-four".