378644018002840 has 64 divisors (see below), whose sum is σ = 881342010360000. Its totient is φ = 146232373056000.

The previous prime is 378644018002829. The next prime is 378644018002847. The reversal of 378644018002840 is 48200810446873.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378644018002847) 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, 64165086 + ... + 69817234.

It is an arithmetic number, because the mean of its divisors is an integer number (13770968911875).

Almost surely, 2^{378644018002840} is an apocalyptic number.

It is an amenable number.

378644018002840 is an abundant number, since it is smaller than the sum of its proper divisors (502697992357160).

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

378644018002840 is a wasteful number, since it uses less digits than its factorization.

378644018002840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5709940 (or 5709936 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 55.

The spelling of 378644018002840 in words is "three hundred seventy-eight trillion, six hundred forty-four billion, eighteen million, two thousand, eight hundred forty".