378347699466 has 128 divisors (see below), whose sum is σ = 967973760000. Its totient is φ = 108336087360.

The previous prime is 378347699441. The next prime is 378347699501. The reversal of 378347699466 is 664996743873.

378347699466 is a `hidden beast` number, since 3 + 7 + 8 + 3 + 4 + 76 + 99 + 466 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 378347699394 and 378347699403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4347165 + ... + 4433343.

It is an arithmetic number, because the mean of its divisors is an integer number (7562295000).

Almost surely, 2^378347699466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 378347699466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (483986880000).

378347699466 is an abundant number, since it is smaller than the sum of its proper divisors (589626060534).

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

378347699466 is a wasteful number, since it uses less digits than its factorization.

378347699466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86609 (or 86603 counting only the distinct ones).

The product of its digits is 987614208, while the sum is 72.

The spelling of 378347699466 in words is "three hundred seventy-eight billion, three hundred forty-seven million, six hundred ninety-nine thousand, four hundred sixty-six".