939639422500 has 45 divisors (see below), whose sum is σ = 2054909483319. Its totient is φ = 375836382000.

The previous prime is 939639422443. The next prime is 939639422507. The reversal of 939639422500 is 5224936939.

The square root of 939639422500 is 969350.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 73667730724 + 865971691776 = 271418^2 + 930576^2 .

It is a super-2 number, since 2×939639422500² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (939639422507) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 48457807 + ... + 48477193.

Almost surely, 2^939639422500 is an apocalyptic number.

939639422500 is the 969350-th square number.

It is an amenable number.

939639422500 is an abundant number, since it is smaller than the sum of its proper divisors (1115270060819).

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

939639422500 is an frugal number, since it uses more digits than its factorization.

939639422500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38798 (or 19394 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 52.

The spelling of 939639422500 in words is "nine hundred thirty-nine billion, six hundred thirty-nine million, four hundred twenty-two thousand, five hundred".