85636105420 has 24 divisors (see below), whose sum is σ = 180202106448. Its totient is φ = 34184673600.

The previous prime is 85636105391. The next prime is 85636105421. The reversal of 85636105420 is 2450163658.

It is not an unprimeable number, because it can be changed into a prime (85636105421) 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, 4350471 + ... + 4370110.

It is an arithmetic number, because the mean of its divisors is an integer number (7508421102).

Almost surely, 2^85636105420 is an apocalyptic number.

It is an amenable number.

85636105420 is an abundant number, since it is smaller than the sum of its proper divisors (94566001028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85636105420 is a wasteful number, since it uses less digits than its factorization.

85636105420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8721081 (or 8721079 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 85636105420 in words is "eighty-five billion, six hundred thirty-six million, one hundred five thousand, four hundred twenty".