83708678185 has 16 divisors (see below), whose sum is σ = 110187709632. Its totient is φ = 60542683200.

The previous prime is 83708678167. The next prime is 83708678189. The reversal of 83708678185 is 58187680738.

It is not a de Polignac number, because 83708678185 - 2¹¹ = 83708676137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83708678189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4194399 + ... + 4214308.

It is an arithmetic number, because the mean of its divisors is an integer number (6886731852).

Almost surely, 2^83708678185 is an apocalyptic number.

It is an amenable number.

83708678185 is a deficient number, since it is larger than the sum of its proper divisors (26479031447).

83708678185 is a wasteful number, since it uses less digits than its factorization.

83708678185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8408904.

The product of its (nonzero) digits is 18063360, while the sum is 61.

The spelling of 83708678185 in words is "eighty-three billion, seven hundred eight million, six hundred seventy-eight thousand, one hundred eighty-five".