2978228394786 has 16 divisors (see below), whose sum is σ = 6101736223968. Its totient is φ = 968529559200.

The previous prime is 2978228394781. The next prime is 2978228394839. The reversal of 2978228394786 is 6874938228792.

It is not an unprimeable number, because it can be changed into a prime (2978228394781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6053309500 + ... + 6053309991.

It is an arithmetic number, because the mean of its divisors is an integer number (381358513998).

Almost surely, 2^{2978228394786} is an apocalyptic number.

2978228394786 is an abundant number, since it is smaller than the sum of its proper divisors (3123507829182).

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

2978228394786 is a wasteful number, since it uses less digits than its factorization.

2978228394786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12106619537.

The product of its digits is 1170505728, while the sum is 75.

The spelling of 2978228394786 in words is "two trillion, nine hundred seventy-eight billion, two hundred twenty-eight million, three hundred ninety-four thousand, seven hundred eighty-six".