378205850820 has 96 divisors (see below), whose sum is σ = 1210423027968. Its totient is φ = 86435315712.

The previous prime is 378205850819. The next prime is 378205850821. The reversal of 378205850820 is 28058502873.

It is an interprime number because it is at equal distance from previous prime (378205850819) and next prime (378205850821).

It is a self number, because there is not a number n which added to its sum of digits gives 378205850820.

It is not an unprimeable number, because it can be changed into a prime (378205850821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3249472 + ... + 3363848.

It is an arithmetic number, because the mean of its divisors is an integer number (12608573208).

Almost surely, 2^378205850820 is an apocalyptic number.

378205850820 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

378205850820 is an abundant number, since it is smaller than the sum of its proper divisors (832217177148).

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

378205850820 is a wasteful number, since it uses less digits than its factorization.

378205850820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122269 (or 122267 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 48.

The spelling of 378205850820 in words is "three hundred seventy-eight billion, two hundred five million, eight hundred fifty thousand, eight hundred twenty".