378946646380 has 12 divisors (see below), whose sum is σ = 795787957440. Its totient is φ = 151578658544.

The previous prime is 378946646369. The next prime is 378946646387. The reversal of 378946646380 is 83646649873.

It is not an unprimeable number, because it can be changed into a prime (378946646387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9473666140 + ... + 9473666179.

It is an arithmetic number, because the mean of its divisors is an integer number (66315663120).

Almost surely, 2^378946646380 is an apocalyptic number.

It is an amenable number.

378946646380 is an abundant number, since it is smaller than the sum of its proper divisors (416841311060).

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

378946646380 is a wasteful number, since it uses less digits than its factorization.

378946646380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18947332328 (or 18947332326 counting only the distinct ones).

The product of its (nonzero) digits is 125411328, while the sum is 64.

The spelling of 378946646380 in words is "three hundred seventy-eight billion, nine hundred forty-six million, six hundred forty-six thousand, three hundred eighty".