814477214985 has 16 divisors (see below), whose sum is σ = 1489329764736. Its totient is φ = 372332441088.

The previous prime is 814477214977. The next prime is 814477215043. The reversal of 814477214985 is 589412774418.

It is a happy number.

It is not a de Polignac number, because 814477214985 - 2³ = 814477214977 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3878462824 + ... + 3878463033.

It is an arithmetic number, because the mean of its divisors is an integer number (93083110296).

Almost surely, 2^814477214985 is an apocalyptic number.

It is an amenable number.

814477214985 is a deficient number, since it is larger than the sum of its proper divisors (674852549751).

814477214985 is a wasteful number, since it uses less digits than its factorization.

814477214985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7756925872.

The product of its digits is 18063360, while the sum is 60.

The spelling of 814477214985 in words is "eight hundred fourteen billion, four hundred seventy-seven million, two hundred fourteen thousand, nine hundred eighty-five".