873430185641 has 4 divisors (see below), whose sum is σ = 940617123012. Its totient is φ = 806243248272.

The previous prime is 873430185623. The next prime is 873430185643. The reversal of 873430185641 is 146581034378.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 258491913241 + 614938272400 = 508421^2 + 784180^2 .

It is a cyclic number.

It is not a de Polignac number, because 873430185641 - 2¹⁰ = 873430184617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 873430185641.

It is not an unprimeable number, because it can be changed into a prime (873430185643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33593468666 + ... + 33593468691.

It is an arithmetic number, because the mean of its divisors is an integer number (235154280753).

Almost surely, 2^873430185641 is an apocalyptic number.

It is an amenable number.

873430185641 is a deficient number, since it is larger than the sum of its proper divisors (67186937371).

873430185641 is a wasteful number, since it uses less digits than its factorization.

873430185641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67186937370.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 873430185641 in words is "eight hundred seventy-three billion, four hundred thirty million, one hundred eighty-five thousand, six hundred forty-one".