8684421451 has 4 divisors (see below), whose sum is σ = 8708612400. Its totient is φ = 8660230504.

The previous prime is 8684421439. The next prime is 8684421467. The reversal of 8684421451 is 1541244868.

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

It is a cyclic number.

It is not a de Polignac number, because 8684421451 - 2⁷ = 8684421323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8684421398 and 8684421407.

It is not an unprimeable number, because it can be changed into a prime (8684421481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12094936 + ... + 12095653.

It is an arithmetic number, because the mean of its divisors is an integer number (2177153100).

Almost surely, 2^8684421451 is an apocalyptic number.

8684421451 is a deficient number, since it is larger than the sum of its proper divisors (24190949).

8684421451 is a wasteful number, since it uses less digits than its factorization.

8684421451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24190948.

The product of its digits is 245760, while the sum is 43.

The square root of 8684421451 is about 93190.2433251464. The cubic root of 8684421451 is about 2055.4817751057.

The spelling of 8684421451 in words is "eight billion, six hundred eighty-four million, four hundred twenty-one thousand, four hundred fifty-one".