378728621500 has 48 divisors (see below), whose sum is σ = 827406006336. Its totient is φ = 151443336000.

The previous prime is 378728621497. The next prime is 378728621507. The reversal of 378728621500 is 5126827873.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378728621507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1476814 + ... + 1714186.

It is an arithmetic number, because the mean of its divisors is an integer number (17237625132).

Almost surely, 2^378728621500 is an apocalyptic number.

It is an amenable number.

378728621500 is an abundant number, since it is smaller than the sum of its proper divisors (448677384836).

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

378728621500 is a wasteful number, since it uses less digits than its factorization.

378728621500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240583 (or 240571 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 378728621500 in words is "three hundred seventy-eight billion, seven hundred twenty-eight million, six hundred twenty-one thousand, five hundred".