8467678449 has 6 divisors (see below), whose sum is σ = 12231091106. Its totient is φ = 5645118960.

The previous prime is 8467678423. The next prime is 8467678451. The reversal of 8467678449 is 9448767648.

It can be written as a sum of positive squares in only one way, i.e., 8035329600 + 432348849 = 89640^2 + 20793^2 .

It is not a de Polignac number, because 8467678449 - 2⁹ = 8467677937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8467671449) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 470426572 + ... + 470426589.

Almost surely, 2^8467678449 is an apocalyptic number.

It is an amenable number.

8467678449 is a deficient number, since it is larger than the sum of its proper divisors (3763412657).

8467678449 is a wasteful number, since it uses less digits than its factorization.

8467678449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940853167 (or 940853164 counting only the distinct ones).

The product of its digits is 65028096, while the sum is 63.

The square root of 8467678449 is about 92019.9893990431. The cubic root of 8467678449 is about 2038.2374922387.

The spelling of 8467678449 in words is "eight billion, four hundred sixty-seven million, six hundred seventy-eight thousand, four hundred forty-nine".