378333970506 has 64 divisors (see below), whose sum is σ = 857042985600. Its totient is φ = 123668633088.

The previous prime is 378333970501. The next prime is 378333970513. The reversal of 378333970506 is 605079333873.

378333970506 is a `hidden beast` number, since 3 + 7 + 8 + 33 + 39 + 70 + 506 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (378333970501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5739885 + ... + 5805423.

It is an arithmetic number, because the mean of its divisors is an integer number (13391296650).

Almost surely, 2^378333970506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 378333970506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (428521492800).

378333970506 is an abundant number, since it is smaller than the sum of its proper divisors (478709015094).

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

378333970506 is a wasteful number, since it uses less digits than its factorization.

378333970506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67620 (or 67614 counting only the distinct ones).

The product of its (nonzero) digits is 8573040, while the sum is 54.

The spelling of 378333970506 in words is "three hundred seventy-eight billion, three hundred thirty-three million, nine hundred seventy thousand, five hundred six".