85391406860 has 48 divisors (see below), whose sum is σ = 183351633696. Its totient is φ = 33393564672.

The previous prime is 85391406851. The next prime is 85391406899. The reversal of 85391406860 is 6860419358.

It is a junction number, because it is equal to n+sod(n) for n = 85391406799 and 85391406808.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157652 + ... + 442308.

It is an arithmetic number, because the mean of its divisors is an integer number (3819825702).

Almost surely, 2^85391406860 is an apocalyptic number.

It is an amenable number.

85391406860 is an abundant number, since it is smaller than the sum of its proper divisors (97960226836).

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

85391406860 is a wasteful number, since it uses less digits than its factorization.

85391406860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285002 (or 285000 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 85391406860 in words is "eighty-five billion, three hundred ninety-one million, four hundred six thousand, eight hundred sixty".