8208117146854 has 4 divisors (see below), whose sum is σ = 12312175720284. Its totient is φ = 4104058573426.

The previous prime is 8208117146843. The next prime is 8208117146861. The reversal of 8208117146854 is 4586417118028.

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

It is a junction number, because it is equal to n+sod(n) for n = 8208117146795 and 8208117146804.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2052029286712 + ... + 2052029286715.

It is an arithmetic number, because the mean of its divisors is an integer number (3078043930071).

Almost surely, 2^{8208117146854} is an apocalyptic number.

8208117146854 is a deficient number, since it is larger than the sum of its proper divisors (4104058573430).

8208117146854 is a wasteful number, since it uses less digits than its factorization.

8208117146854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4104058573429.

The product of its (nonzero) digits is 3440640, while the sum is 55.

The spelling of 8208117146854 in words is "eight trillion, two hundred eight billion, one hundred seventeen million, one hundred forty-six thousand, eight hundred fifty-four".