85369542838 has 24 divisors (see below), whose sum is σ = 136222531200. Its totient is φ = 40117047168.

The previous prime is 85369542829. The next prime is 85369542871. The reversal of 85369542838 is 83824596358.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 305643 + ... + 513961.

It is an arithmetic number, because the mean of its divisors is an integer number (5675938800).

Almost surely, 2^85369542838 is an apocalyptic number.

85369542838 is a deficient number, since it is larger than the sum of its proper divisors (50852988362).

85369542838 is a wasteful number, since it uses less digits than its factorization.

85369542838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209064 (or 209047 counting only the distinct ones).

The product of its digits is 49766400, while the sum is 61.

The spelling of 85369542838 in words is "eighty-five billion, three hundred sixty-nine million, five hundred forty-two thousand, eight hundred thirty-eight".