8380056978 has 48 divisors (see below), whose sum is σ = 19219749120. Its totient is φ = 2634301152.

The previous prime is 8380056967. The next prime is 8380057039. The reversal of 8380056978 is 8796500838.

It is a happy number.

8380056978 is a `hidden beast` number, since 8 + 3 + 8 + 0 + 0 + 569 + 78 = 666.

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 23 ways as a sum of consecutive naturals, for example, 164226 + ... + 209117.

It is an arithmetic number, because the mean of its divisors is an integer number (400411440).

Almost surely, 2^8380056978 is an apocalyptic number.

8380056978 is an abundant number, since it is smaller than the sum of its proper divisors (10839692142).

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

8380056978 is a wasteful number, since it uses less digits than its factorization.

8380056978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373423 (or 373420 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The square root of 8380056978 is about 91542.6511414215. The cubic root of 8380056978 is about 2031.1827074726.

The spelling of 8380056978 in words is "eight billion, three hundred eighty million, fifty-six thousand, nine hundred seventy-eight".