85939386081 has 8 divisors (see below), whose sum is σ = 119567841600. Its totient is φ = 54801927312.

The previous prime is 85939386079. The next prime is 85939386097. The reversal of 85939386081 is 18068393958.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85939386081 - 2¹ = 85939386079 is a prime.

It is a super-2 number, since 2×85939386081² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85939384081) 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, 622749106 + ... + 622749243.

It is an arithmetic number, because the mean of its divisors is an integer number (14945980200).

Almost surely, 2^85939386081 is an apocalyptic number.

It is an amenable number.

85939386081 is a deficient number, since it is larger than the sum of its proper divisors (33628455519).

85939386081 is a wasteful number, since it uses less digits than its factorization.

85939386081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245498375.

The product of its (nonzero) digits is 11197440, while the sum is 60.

The spelling of 85939386081 in words is "eighty-five billion, nine hundred thirty-nine million, three hundred eighty-six thousand, eighty-one".