839493394938 has 96 divisors (see below), whose sum is σ = 2042974844352. Its totient is φ = 246898368000.

The previous prime is 839493394913. The next prime is 839493394951.

839493394938 is a `hidden beast` number, since 8 + 39 + 493 + 39 + 49 + 38 = 666.

839493394938 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2794845 + ... + 3080607.

It is an arithmetic number, because the mean of its divisors is an integer number (21280987962).

Almost surely, 2^839493394938 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 839493394938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1021487422176).

839493394938 is an abundant number, since it is smaller than the sum of its proper divisors (1203481449414).

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

839493394938 is a wasteful number, since it uses less digits than its factorization.

839493394938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286220 (or 286217 counting only the distinct ones).

The product of its digits is 544195584, while the sum is 72.

The spelling of 839493394938 in words is "eight hundred thirty-nine billion, four hundred ninety-three million, three hundred ninety-four thousand, nine hundred thirty-eight".