382909111820 has 24 divisors (see below), whose sum is σ = 805433887104. Its totient is φ = 152911310976.

The previous prime is 382909111801. The next prime is 382909111829. The reversal of 382909111820 is 28111909283.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (382909111829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15758417 + ... + 15782696.

It is an arithmetic number, because the mean of its divisors is an integer number (33559745296).

Almost surely, 2^382909111820 is an apocalyptic number.

It is an amenable number.

382909111820 is an abundant number, since it is smaller than the sum of its proper divisors (422524775284).

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

382909111820 is a wasteful number, since it uses less digits than its factorization.

382909111820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31541729 (or 31541727 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 44.

The spelling of 382909111820 in words is "three hundred eighty-two billion, nine hundred nine million, one hundred eleven thousand, eight hundred twenty".