2855934857 has 2 divisors, whose sum is σ = 2855934858. Its totient is φ = 2855934856.

The previous prime is 2855934841. The next prime is 2855934871. The reversal of 2855934857 is 7584395582.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1945162816 + 910772041 = 44104^2 + 30179^2 .

It is a cyclic number.

It is not a de Polignac number, because 2855934857 - 2⁴ = 2855934841 is a prime.

It is a super-2 number, since 2×2855934857² = 16312727814855220898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2855934157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1427967428 + 1427967429.

It is an arithmetic number, because the mean of its divisors is an integer number (1427967429).

Almost surely, 2^2855934857 is an apocalyptic number.

It is an amenable number.

2855934857 is a deficient number, since it is larger than the sum of its proper divisors (1).

2855934857 is an equidigital number, since it uses as much as digits as its factorization.

2855934857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096000, while the sum is 56.

The square root of 2855934857 is about 53440.9473811982. The cubic root of 2855934857 is about 1418.7834016938.

The spelling of 2855934857 in words is "two billion, eight hundred fifty-five million, nine hundred thirty-four thousand, eight hundred fifty-seven".