854216565612458 has 16 divisors (see below), whose sum is σ = 1350031825302720. Its totient is φ = 404248251410496.

The previous prime is 854216565612437. The next prime is 854216565612479.

854216565612458 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (854216565612437) and next prime (854216565612479).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10573517135 + ... + 10573597922.

It is an arithmetic number, because the mean of its divisors is an integer number (84376989081420).

Almost surely, 2^{854216565612458} is an apocalyptic number.

854216565612458 is a deficient number, since it is larger than the sum of its proper divisors (495815259690262).

854216565612458 is a wasteful number, since it uses less digits than its factorization.

854216565612458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21147116141.

The product of its digits is 552960000, while the sum is 68.

The spelling of 854216565612458 in words is "eight hundred fifty-four trillion, two hundred sixteen billion, five hundred sixty-five million, six hundred twelve thousand, four hundred fifty-eight".