8454134428621 has 16 divisors (see below), whose sum is σ = 10582979063040. Its totient is φ = 6584964744960.

The previous prime is 8454134428601. The next prime is 8454134428639. The reversal of 8454134428621 is 1268244314548.

It is not a de Polignac number, because 8454134428621 - 2⁹ = 8454134428109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8454134428601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1224878385 + ... + 1224885286.

It is an arithmetic number, because the mean of its divisors is an integer number (661436191440).

Almost surely, 2^{8454134428621} is an apocalyptic number.

It is an amenable number.

8454134428621 is a deficient number, since it is larger than the sum of its proper divisors (2128844634419).

8454134428621 is a wasteful number, since it uses less digits than its factorization.

8454134428621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2449763724.

The product of its digits is 5898240, while the sum is 52.

The spelling of 8454134428621 in words is "eight trillion, four hundred fifty-four billion, one hundred thirty-four million, four hundred twenty-eight thousand, six hundred twenty-one".