378685307664630 has 192 divisors, whose sum is σ = 1012788428940288. Its totient is φ = 98098497826560.

The previous prime is 378685307664611. The next prime is 378685307664673. The reversal of 378685307664630 is 36466703586873.

378685307664630 is a `hidden beast` number, since 3 + 7 + 8 + 68 + 5 + 30 + 76 + 6 + 463 + 0 = 666.

It is a super-3 number, since 3×378685307664630³ (a number of 45 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5688409245 + ... + 5688475815.

It is an arithmetic number, because the mean of its divisors is an integer number (5274939734064).

Almost surely, 2^{378685307664630} is an apocalyptic number.

378685307664630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 378685307664630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (506394214470144).

378685307664630 is an abundant number, since it is smaller than the sum of its proper divisors (634103121275658).

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

378685307664630 is a wasteful number, since it uses less digits than its factorization.

378685307664630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69291 (or 69288 counting only the distinct ones).

The product of its (nonzero) digits is 2194698240, while the sum is 72.

The spelling of 378685307664630 in words is "three hundred seventy-eight trillion, six hundred eighty-five billion, three hundred seven million, six hundred sixty-four thousand, six hundred thirty".