85936638219 has 4 divisors (see below), whose sum is σ = 114582184296. Its totient is φ = 57291092144.

The previous prime is 85936638181. The next prime is 85936638233. The reversal of 85936638219 is 91283663958.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85936638219 - 2⁹ = 85936637707 is a prime.

It is a super-2 number, since 2×85936638219² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85936638119) 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, 14322773034 + ... + 14322773039.

It is an arithmetic number, because the mean of its divisors is an integer number (28645546074).

Almost surely, 2^85936638219 is an apocalyptic number.

85936638219 is a deficient number, since it is larger than the sum of its proper divisors (28645546077).

85936638219 is a wasteful number, since it uses less digits than its factorization.

85936638219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28645546076.

The product of its digits is 16796160, while the sum is 60.

The spelling of 85936638219 in words is "eighty-five billion, nine hundred thirty-six million, six hundred thirty-eight thousand, two hundred nineteen".