838520084988 has 96 divisors (see below), whose sum is σ = 2290973126400. Its totient is φ = 264493315008.

The previous prime is 838520084957. The next prime is 838520085017. The reversal of 838520084988 is 889480025838.

838520084988 is a `hidden beast` number, since 8 + 385 + 200 + 8 + 49 + 8 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1566631 + ... + 2032577.

It is an arithmetic number, because the mean of its divisors is an integer number (23864303400).

Almost surely, 2^838520084988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 838520084988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1145486563200).

838520084988 is an abundant number, since it is smaller than the sum of its proper divisors (1452453041412).

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

838520084988 is a wasteful number, since it uses less digits than its factorization.

838520084988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466856 (or 466848 counting only the distinct ones).

The product of its (nonzero) digits is 35389440, while the sum is 63.

The spelling of 838520084988 in words is "eight hundred thirty-eight billion, five hundred twenty million, eighty-four thousand, nine hundred eighty-eight".