939886865442 has 96 divisors (see below), whose sum is σ = 2414143689600. Its totient is φ = 265520965248.

The previous prime is 939886865413. The next prime is 939886865443. The reversal of 939886865442 is 244568688939.

It is a happy number.

939886865442 is a `hidden beast` number, since 93 + 98 + 8 + 6 + 8 + 6 + 5 + 442 = 666.

It is not an unprimeable number, because it can be changed into a prime (939886865443) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2837184 + ... + 3151092.

It is an arithmetic number, because the mean of its divisors is an integer number (25147330100).

Almost surely, 2^939886865442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 939886865442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1207071844800).

939886865442 is an abundant number, since it is smaller than the sum of its proper divisors (1474256824158).

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

939886865442 is a wasteful number, since it uses less digits than its factorization.

939886865442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314105 (or 314010 counting only the distinct ones).

The product of its digits is 716636160, while the sum is 72.

The spelling of 939886865442 in words is "nine hundred thirty-nine billion, eight hundred eighty-six million, eight hundred sixty-five thousand, four hundred forty-two".