84294172279665 has 12 divisors (see below), whose sum is σ = 146109898618164. Its totient is φ = 44956891882464.

The previous prime is 84294172279631. The next prime is 84294172279739. The reversal of 84294172279665 is 56697227149248.

84294172279665 is a `hidden beast` number, since 8 + 4 + 294 + 1 + 7 + 2 + 279 + 6 + 65 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 27325627121664 + 56968545158001 = 5227392^2 + 7547751^2 .

It is not a de Polignac number, because 84294172279665 - 2¹⁵ = 84294172246897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84294172279593 and 84294172279602.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 936601914174 + ... + 936601914263.

It is an arithmetic number, because the mean of its divisors is an integer number (12175824884847).

Almost surely, 2^{84294172279665} is an apocalyptic number.

It is an amenable number.

84294172279665 is a deficient number, since it is larger than the sum of its proper divisors (61815726338499).

84294172279665 is a wasteful number, since it uses less digits than its factorization.

84294172279665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1873203828448 (or 1873203828445 counting only the distinct ones).

The product of its digits is 731566080, while the sum is 72.

The spelling of 84294172279665 in words is "eighty-four trillion, two hundred ninety-four billion, one hundred seventy-two million, two hundred seventy-nine thousand, six hundred sixty-five".