855000084815 has 8 divisors (see below), whose sum is σ = 1026854397168. Its totient is φ = 683430537600.

The previous prime is 855000084811. The next prime is 855000084823. The reversal of 855000084815 is 518480000558.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 855000084815 - 2² = 855000084811 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 (855000084811) 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 7 ways as a sum of consecutive naturals, for example, 71184677 + ... + 71196686.

It is an arithmetic number, because the mean of its divisors is an integer number (128356799646).

Almost surely, 2^855000084815 is an apocalyptic number.

855000084815 is a deficient number, since it is larger than the sum of its proper divisors (171854312353).

855000084815 is a wasteful number, since it uses less digits than its factorization.

855000084815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142382569.

The product of its (nonzero) digits is 256000, while the sum is 44.

The spelling of 855000084815 in words is "eight hundred fifty-five billion, eighty-four thousand, eight hundred fifteen".