85638588583658 has 16 divisors (see below), whose sum is σ = 147511444451040. Its totient is φ = 36877861112400.

The previous prime is 85638588583651. The next prime is 85638588583711.

85638588583658 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 85638588583658.

It is not an unprimeable number, because it can be changed into a prime (85638588583651) 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, 102438502673 + ... + 102438503508.

It is an arithmetic number, because the mean of its divisors is an integer number (9219465278190).

Almost surely, 2^{85638588583658} is an apocalyptic number.

85638588583658 is a deficient number, since it is larger than the sum of its proper divisors (61872855867382).

85638588583658 is a wasteful number, since it uses less digits than its factorization.

85638588583658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204877006213.

The product of its digits is 53084160000, while the sum is 86.

The spelling of 85638588583658 in words is "eighty-five trillion, six hundred thirty-eight billion, five hundred eighty-eight million, five hundred eighty-three thousand, six hundred fifty-eight".