378441565144872 has 32 divisors (see below), whose sum is σ = 995898855645600. Its totient is φ = 119507862677184.

The previous prime is 378441565144859. The next prime is 378441565144949. The reversal of 378441565144872 is 278441565144873.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 378441565144797 and 378441565144806.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 414957856063 + ... + 414957856974.

It is an arithmetic number, because the mean of its divisors is an integer number (31121839238925).

Almost surely, 2^{378441565144872} is an apocalyptic number.

It is an amenable number.

378441565144872 is an abundant number, since it is smaller than the sum of its proper divisors (617457290500728).

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

378441565144872 is a wasteful number, since it uses less digits than its factorization.

378441565144872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829915713065 (or 829915713061 counting only the distinct ones).

The product of its digits is 722534400, while the sum is 69.

Subtracting from 378441565144872 its reverse (278441565144873), we obtain a palindrome (99999999999999).

The spelling of 378441565144872 in words is "three hundred seventy-eight trillion, four hundred forty-one billion, five hundred sixty-five million, one hundred forty-four thousand, eight hundred seventy-two".