83585138636 has 12 divisors (see below), whose sum is σ = 146276288760. Its totient is φ = 41791913280.

The previous prime is 83585138633. The next prime is 83585138647. The reversal of 83585138636 is 63683158538.

It is not an unprimeable number, because it can be changed into a prime (83585138633) 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, 225380 + ... + 466868.

It is an arithmetic number, because the mean of its divisors is an integer number (12189690730).

Almost surely, 2^83585138636 is an apocalyptic number.

It is an amenable number.

83585138636 is a deficient number, since it is larger than the sum of its proper divisors (62691150124).

83585138636 is a wasteful number, since it uses less digits than its factorization.

83585138636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328024 (or 328022 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 56.

The spelling of 83585138636 in words is "eighty-three billion, five hundred eighty-five million, one hundred thirty-eight thousand, six hundred thirty-six".