2878886657 has 2 divisors, whose sum is σ = 2878886658. Its totient is φ = 2878886656.

The previous prime is 2878886617. The next prime is 2878886687. The reversal of 2878886657 is 7566888782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2872531216 + 6355441 = 53596^2 + 2521^2 .

It is a cyclic number.

It is not a de Polignac number, because 2878886657 - 2¹⁸ = 2878624513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2878886593 and 2878886602.

It is not a weakly prime, because it can be changed into another prime (2878886617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1439443328 + 1439443329.

It is an arithmetic number, because the mean of its divisors is an integer number (1439443329).

Almost surely, 2^2878886657 is an apocalyptic number.

It is an amenable number.

2878886657 is a deficient number, since it is larger than the sum of its proper divisors (1).

2878886657 is an equidigital number, since it uses as much as digits as its factorization.

2878886657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72253440, while the sum is 65.

The square root of 2878886657 is about 53655.2574963535. The cubic root of 2878886657 is about 1422.5739628766.

The spelling of 2878886657 in words is "two billion, eight hundred seventy-eight million, eight hundred eighty-six thousand, six hundred fifty-seven".