8421671451 has 32 divisors (see below), whose sum is σ = 11672627200. Its totient is φ = 5395299840.

The previous prime is 8421671431. The next prime is 8421671507. The reversal of 8421671451 is 1541761248.

8421671451 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8421671451 - 2¹⁰ = 8421670427 is a prime.

It is a super-3 number, since 3×8421671451³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8421671431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11877885 + ... + 11878593.

It is an arithmetic number, because the mean of its divisors is an integer number (364769600).

Almost surely, 2^8421671451 is an apocalyptic number.

8421671451 is a deficient number, since it is larger than the sum of its proper divisors (3250955749).

8421671451 is a wasteful number, since it uses less digits than its factorization.

8421671451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459.

The product of its digits is 53760, while the sum is 39.

The square root of 8421671451 is about 91769.6652004354. The cubic root of 8421671451 is about 2034.5393698514.

The spelling of 8421671451 in words is "eight billion, four hundred twenty-one million, six hundred seventy-one thousand, four hundred fifty-one".