84155235751613 has 32 divisors (see below), whose sum is σ = 96464606386176. Its totient is φ = 72727698751488.

The previous prime is 84155235751589. The next prime is 84155235751711. The reversal of 84155235751613 is 31615753255148.

It is a cyclic number.

It is not a de Polignac number, because 84155235751613 - 2²⁴ = 84155218974397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84155235754613) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 595663820 + ... + 595805082.

It is an arithmetic number, because the mean of its divisors is an integer number (3014518949568).

Almost surely, 2^{84155235751613} is an apocalyptic number.

It is an amenable number.

84155235751613 is a deficient number, since it is larger than the sum of its proper divisors (12309370634563).

84155235751613 is a wasteful number, since it uses less digits than its factorization.

84155235751613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155453.

The product of its digits is 15120000, while the sum is 56.

The spelling of 84155235751613 in words is "eighty-four trillion, one hundred fifty-five billion, two hundred thirty-five million, seven hundred fifty-one thousand, six hundred thirteen".