85428383181 has 16 divisors (see below), whose sum is σ = 115359955200. Its totient is φ = 56224703808.

The previous prime is 85428383149. The next prime is 85428383191. The reversal of 85428383181 is 18138382458.

It is not a de Polignac number, because 85428383181 - 2⁵ = 85428383149 is a prime.

It is a super-2 number, since 2×85428383181² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85428383191) 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, 2752015 + ... + 2782883.

It is an arithmetic number, because the mean of its divisors is an integer number (7209997200).

Almost surely, 2^85428383181 is an apocalyptic number.

It is an amenable number.

85428383181 is a deficient number, since it is larger than the sum of its proper divisors (29931572019).

85428383181 is a wasteful number, since it uses less digits than its factorization.

85428383181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42628.

The product of its digits is 1474560, while the sum is 51.

The spelling of 85428383181 in words is "eighty-five billion, four hundred twenty-eight million, three hundred eighty-three thousand, one hundred eighty-one".