8646489454 has 4 divisors (see below), whose sum is σ = 12969734184. Its totient is φ = 4323244726.

The previous prime is 8646489443. The next prime is 8646489497. The reversal of 8646489454 is 4549846468.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2161622362 + ... + 2161622365.

It is an arithmetic number, because the mean of its divisors is an integer number (3242433546).

Almost surely, 2^8646489454 is an apocalyptic number.

8646489454 is a deficient number, since it is larger than the sum of its proper divisors (4323244730).

8646489454 is a wasteful number, since it uses less digits than its factorization.

8646489454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4323244729.

The product of its digits is 26542080, while the sum is 58.

The square root of 8646489454 is about 92986.5014612336. The cubic root of 8646489454 is about 2052.4847486581.

The spelling of 8646489454 in words is "eight billion, six hundred forty-six million, four hundred eighty-nine thousand, four hundred fifty-four".