83966709189 has 64 divisors (see below), whose sum is σ = 125154720000. Its totient is φ = 49648435200.

The previous prime is 83966709173. The next prime is 83966709191. The reversal of 83966709189 is 98190766938.

It is not a de Polignac number, because 83966709189 - 2⁴ = 83966709173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83966702189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 161164249 + ... + 161164769.

It is an arithmetic number, because the mean of its divisors is an integer number (1955542500).

Almost surely, 2^83966709189 is an apocalyptic number.

It is an amenable number.

83966709189 is a deficient number, since it is larger than the sum of its proper divisors (41188010811).

83966709189 is a wasteful number, since it uses less digits than its factorization.

83966709189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206.

The product of its (nonzero) digits is 35271936, while the sum is 66.

The spelling of 83966709189 in words is "eighty-three billion, nine hundred sixty-six million, seven hundred nine thousand, one hundred eighty-nine".