378671986812 has 48 divisors (see below), whose sum is σ = 1026907096320. Its totient is φ = 106358232192.

The previous prime is 378671986799. The next prime is 378671986883. The reversal of 378671986812 is 218689176873.

It is a super-2 number, since 2×378671986812² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38198433 + ... + 38208344.

It is an arithmetic number, because the mean of its divisors is an integer number (21393897840).

Almost surely, 2^378671986812 is an apocalyptic number.

It is an amenable number.

378671986812 is an abundant number, since it is smaller than the sum of its proper divisors (648235109508).

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

378671986812 is a wasteful number, since it uses less digits than its factorization.

378671986812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76406850 (or 76406848 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 66.

The spelling of 378671986812 in words is "three hundred seventy-eight billion, six hundred seventy-one million, nine hundred eighty-six thousand, eight hundred twelve".