42039858384 has 160 divisors (see below), whose sum is σ = 127214714880. Its totient is φ = 13272508800.

The previous prime is 42039858379. The next prime is 42039858401. The reversal of 42039858384 is 48385893024.

42039858384 is a `hidden beast` number, since 4 + 20 + 39 + 8 + 583 + 8 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 42039858384.

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, 596029 + ... + 662819.

It is an arithmetic number, because the mean of its divisors is an integer number (795091968).

Almost surely, 2^42039858384 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 42039858384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63607357440).

42039858384 is an abundant number, since it is smaller than the sum of its proper divisors (85174856496).

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

42039858384 is a wasteful number, since it uses less digits than its factorization.

42039858384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66886 (or 66874 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 54.

The spelling of 42039858384 in words is "forty-two billion, thirty-nine million, eight hundred fifty-eight thousand, three hundred eighty-four".