378847643240 has 32 divisors (see below), whose sum is σ = 929898761760. Its totient is φ = 137762779200.

The previous prime is 378847643233. The next prime is 378847643257. The reversal of 378847643240 is 42346748873.

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, 430508246 + ... + 430509125.

It is an arithmetic number, because the mean of its divisors is an integer number (29059336305).

Almost surely, 2^378847643240 is an apocalyptic number.

It is an amenable number.

378847643240 is an abundant number, since it is smaller than the sum of its proper divisors (551051118520).

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

378847643240 is a wasteful number, since it uses less digits than its factorization.

378847643240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861017393 (or 861017389 counting only the distinct ones).

The product of its (nonzero) digits is 21676032, while the sum is 56.

The spelling of 378847643240 in words is "three hundred seventy-eight billion, eight hundred forty-seven million, six hundred forty-three thousand, two hundred forty".