84091194205 has 8 divisors (see below), whose sum is σ = 100914983352. Its totient is φ = 67269255168.

The previous prime is 84091194193. The next prime is 84091194221. The reversal of 84091194205 is 50249119048.

It can be written as a sum of positive squares in 4 ways, for example, as 6724328004 + 77366866201 = 82002^2 + 278149^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 84091194205 - 2¹⁵ = 84091161437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360484 + ... + 546013.

It is an arithmetic number, because the mean of its divisors is an integer number (12614372919).

Almost surely, 2^84091194205 is an apocalyptic number.

It is an amenable number.

84091194205 is a deficient number, since it is larger than the sum of its proper divisors (16823789147).

84091194205 is a wasteful number, since it uses less digits than its factorization.

84091194205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925055.

The product of its (nonzero) digits is 103680, while the sum is 43.

The spelling of 84091194205 in words is "eighty-four billion, ninety-one million, one hundred ninety-four thousand, two hundred five".