8454656121 has 16 divisors (see below), whose sum is σ = 11937878784. Its totient is φ = 5304040704.

The previous prime is 8454656117. The next prime is 8454656123. The reversal of 8454656121 is 1216564548.

It is not a de Polignac number, because 8454656121 - 2² = 8454656117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8454656123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 526416 + ... + 542238.

It is an arithmetic number, because the mean of its divisors is an integer number (746117424).

Almost surely, 2^8454656121 is an apocalyptic number.

It is an amenable number.

8454656121 is a deficient number, since it is larger than the sum of its proper divisors (3483222663).

8454656121 is a wasteful number, since it uses less digits than its factorization.

8454656121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26320.

The product of its digits is 230400, while the sum is 42.

The square root of 8454656121 is about 91949.2040259186. The cubic root of 8454656121 is about 2037.1920968778.

The spelling of 8454656121 in words is "eight billion, four hundred fifty-four million, six hundred fifty-six thousand, one hundred twenty-one".