8678449971 has 16 divisors (see below), whose sum is σ = 12869596320. Its totient is φ = 5779948320.

The previous prime is 8678449957. The next prime is 8678449987. The reversal of 8678449971 is 1799448768.

8678449971 is a `hidden beast` number, since 8 + 6 + 78 + 4 + 499 + 71 = 666.

It is not a de Polignac number, because 8678449971 - 2¹⁸ = 8678187827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8678449899 and 8678449908.

It is not an unprimeable number, because it can be changed into a prime (8678449921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129840 + ... + 184973.

It is an arithmetic number, because the mean of its divisors is an integer number (804349770).

Almost surely, 2^8678449971 is an apocalyptic number.

8678449971 is a deficient number, since it is larger than the sum of its proper divisors (4191146349).

8678449971 is a wasteful number, since it uses less digits than its factorization.

8678449971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315843 (or 315837 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 63.

The square root of 8678449971 is about 93158.1986247051. The cubic root of 8678449971 is about 2055.0105449936.

The spelling of 8678449971 in words is "eight billion, six hundred seventy-eight million, four hundred forty-nine thousand, nine hundred seventy-one".