85384700838 has 24 divisors (see below), whose sum is σ = 185324200776. Its totient is φ = 28411718400.

The previous prime is 85384700827. The next prime is 85384700879. The reversal of 85384700838 is 83800748358.

85384700838 is a `hidden beast` number, since 8 + 538 + 4 + 70 + 0 + 8 + 38 = 666.

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, 4143483 + ... + 4164038.

It is an arithmetic number, because the mean of its divisors is an integer number (7721841699).

Almost surely, 2^85384700838 is an apocalyptic number.

85384700838 is an abundant number, since it is smaller than the sum of its proper divisors (99939499938).

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

85384700838 is a wasteful number, since it uses less digits than its factorization.

85384700838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8308100 (or 8308097 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The spelling of 85384700838 in words is "eighty-five billion, three hundred eighty-four million, seven hundred thousand, eight hundred thirty-eight".