378728621600 has 72 divisors (see below), whose sum is σ = 1056652869888. Its totient is φ = 129849811200.

The previous prime is 378728621549. The next prime is 378728621639. The reversal of 378728621600 is 6126827873.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 33809456 + ... + 33820655.

It is an arithmetic number, because the mean of its divisors is an integer number (14675734304).

Almost surely, 2^378728621600 is an apocalyptic number.

It is an amenable number.

378728621600 is an abundant number, since it is smaller than the sum of its proper divisors (677924248288).

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

378728621600 is a wasteful number, since it uses less digits than its factorization.

378728621600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67630138 (or 67630125 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 50.

The spelling of 378728621600 in words is "three hundred seventy-eight billion, seven hundred twenty-eight million, six hundred twenty-one thousand, six hundred".