2856920755 has 16 divisors (see below), whose sum is σ = 3716483904. Its totient is φ = 2095747200.

The previous prime is 2856920749. The next prime is 2856920779. The reversal of 2856920755 is 5570296582.

It is a happy number.

It is not a de Polignac number, because 2856920755 - 2¹¹ = 2856918707 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2856920699 and 2856920708.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135724 + ... + 155353.

It is an arithmetic number, because the mean of its divisors is an integer number (232280244).

Almost surely, 2^2856920755 is an apocalyptic number.

2856920755 is a deficient number, since it is larger than the sum of its proper divisors (859563149).

2856920755 is a wasteful number, since it uses less digits than its factorization.

2856920755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291246.

The product of its (nonzero) digits is 1512000, while the sum is 49.

The square root of 2856920755 is about 53450.1707667992. The cubic root of 2856920755 is about 1418.9466424377.

The spelling of 2856920755 in words is "two billion, eight hundred fifty-six million, nine hundred twenty thousand, seven hundred fifty-five".