378838386456 has 64 divisors (see below), whose sum is σ = 1002879830880. Its totient is φ = 118842685440.

The previous prime is 378838386431. The next prime is 378838386463. The reversal of 378838386456 is 654683838873.

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, 7971886 + ... + 8019266.

Almost surely, 2^378838386456 is an apocalyptic number.

It is an amenable number.

378838386456 is an abundant number, since it is smaller than the sum of its proper divisors (624041444424).

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

378838386456 is a wasteful number, since it uses less digits than its factorization.

378838386456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67004 (or 67000 counting only the distinct ones).

The product of its digits is 557383680, while the sum is 69.

The spelling of 378838386456 in words is "three hundred seventy-eight billion, eight hundred thirty-eight million, three hundred eighty-six thousand, four hundred fifty-six".