8678214864 has 90 divisors (see below), whose sum is σ = 26695625138. Its totient is φ = 2629756800.

The previous prime is 8678214863. The next prime is 8678214871. The reversal of 8678214864 is 4684128768.

8678214864 is a `hidden beast` number, since 86 + 7 + 82 + 1 + 486 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7938810000 + 739404864 = 89100^2 + 27192^2 .

It is a super-2 number, since 2×8678214864² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8678214864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8678214863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 231607 + ... + 266454.

Almost surely, 2^8678214864 is an apocalyptic number.

It is an amenable number.

8678214864 is an abundant number, since it is smaller than the sum of its proper divisors (18017410274).

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

8678214864 is a wasteful number, since it uses less digits than its factorization.

8678214864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498097 (or 498077 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 54.

The square root of 8678214864 is about 93156.9367465461. The cubic root of 8678214864 is about 2054.9919874659.

The spelling of 8678214864 in words is "eight billion, six hundred seventy-eight million, two hundred fourteen thousand, eight hundred sixty-four".