939877819812 has 36 divisors (see below), whose sum is σ = 2409264277056. Its totient is φ = 308880033840.

The previous prime is 939877819747. The next prime is 939877819813. The reversal of 939877819812 is 218918778939.

939877819812 is a `hidden beast` number, since 9 + 398 + 77 + 81 + 98 + 1 + 2 = 666.

939877819812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (939877819813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183854608 + ... + 183859719.

It is an arithmetic number, because the mean of its divisors is an integer number (66924007696).

Almost surely, 2^939877819812 is an apocalyptic number.

It is an amenable number.

939877819812 is an abundant number, since it is smaller than the sum of its proper divisors (1469386457244).

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

939877819812 is a wasteful number, since it uses less digits than its factorization.

939877819812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367714408 (or 367714403 counting only the distinct ones).

The product of its digits is 109734912, while the sum is 72.

The spelling of 939877819812 in words is "nine hundred thirty-nine billion, eight hundred seventy-seven million, eight hundred nineteen thousand, eight hundred twelve".