83558979209 has 8 divisors (see below), whose sum is σ = 88735201440. Its totient is φ = 78460595136.

The previous prime is 83558979199. The next prime is 83558979227. The reversal of 83558979209 is 90297985538.

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 83558979209 - 2¹² = 83558975113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83558979409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19457327 + ... + 19461620.

It is an arithmetic number, because the mean of its divisors is an integer number (11091900180).

Almost surely, 2^83558979209 is an apocalyptic number.

It is an amenable number.

83558979209 is a deficient number, since it is larger than the sum of its proper divisors (5176222231).

83558979209 is a wasteful number, since it uses less digits than its factorization.

83558979209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38919079.

The product of its (nonzero) digits is 48988800, while the sum is 65.

The spelling of 83558979209 in words is "eighty-three billion, five hundred fifty-eight million, nine hundred seventy-nine thousand, two hundred nine".