8454421538208 has 36 divisors (see below), whose sum is σ = 24042261250098. Its totient is φ = 2818140512640.

The previous prime is 8454421538099. The next prime is 8454421538209. The reversal of 8454421538208 is 8028351244548.

8454421538208 is a `hidden beast` number, since 8 + 4 + 5 + 4 + 421 + 5 + 3 + 8 + 208 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7656665316624 + 797756221584 = 2767068^2 + 893172^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (8454421538209) 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, 14677814883 + ... + 14677815458.

Almost surely, 2^{8454421538208} is an apocalyptic number.

It is an amenable number.

8454421538208 is an abundant number, since it is smaller than the sum of its proper divisors (15587839711890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8454421538208 is a wasteful number, since it uses less digits than its factorization.

8454421538208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29355630357 (or 29355630346 counting only the distinct ones).

The product of its (nonzero) digits is 9830400, while the sum is 54.

The spelling of 8454421538208 in words is "eight trillion, four hundred fifty-four billion, four hundred twenty-one million, five hundred thirty-eight thousand, two hundred eight".