2855978973 has 8 divisors (see below), whose sum is σ = 4231080000. Its totient is φ = 1903985964.

The previous prime is 2855978959. The next prime is 2855979011. The reversal of 2855978973 is 3798795582.

2855978973 is a `hidden beast` number, since 2 + 8 + 559 + 7 + 8 + 9 + 73 = 666.

It is not a de Polignac number, because 2855978973 - 2¹³ = 2855970781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2855978973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2855978933) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 52888473 + ... + 52888526.

It is an arithmetic number, because the mean of its divisors is an integer number (528885000).

Almost surely, 2^2855978973 is an apocalyptic number.

It is an amenable number.

2855978973 is a deficient number, since it is larger than the sum of its proper divisors (1375101027).

2855978973 is a wasteful number, since it uses less digits than its factorization.

2855978973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105777008 (or 105777002 counting only the distinct ones).

The product of its digits is 38102400, while the sum is 63.

The square root of 2855978973 is about 53441.3601342631. The cubic root of 2855978973 is about 1418.7907070339.

The spelling of 2855978973 in words is "two billion, eight hundred fifty-five million, nine hundred seventy-eight thousand, nine hundred seventy-three".