380442647868 has 12 divisors (see below), whose sum is σ = 887699511720. Its totient is φ = 126814215952.

The previous prime is 380442647867. The next prime is 380442647873. The reversal of 380442647868 is 868746244083.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380442647867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15851776983 + ... + 15851777006.

It is an arithmetic number, because the mean of its divisors is an integer number (73974959310).

Almost surely, 2^380442647868 is an apocalyptic number.

It is an amenable number.

380442647868 is an abundant number, since it is smaller than the sum of its proper divisors (507256863852).

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

380442647868 is a wasteful number, since it uses less digits than its factorization.

380442647868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31703553996 (or 31703553994 counting only the distinct ones).

The product of its (nonzero) digits is 49545216, while the sum is 60.

The spelling of 380442647868 in words is "three hundred eighty billion, four hundred forty-two million, six hundred forty-seven thousand, eight hundred sixty-eight".