2408642857 has 2 divisors, whose sum is σ = 2408642858. Its totient is φ = 2408642856.

The previous prime is 2408642801. The next prime is 2408642881. The reversal of 2408642857 is 7582468042.

2408642857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2407766761 + 876096 = 49069^2 + 936^2 .

It is a cyclic number.

It is not a de Polignac number, because 2408642857 - 2⁷ = 2408642729 is a prime.

It is not a weakly prime, because it can be changed into another prime (2408642657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1204321428 + 1204321429.

It is an arithmetic number, because the mean of its divisors is an integer number (1204321429).

Almost surely, 2^2408642857 is an apocalyptic number.

It is an amenable number.

2408642857 is a deficient number, since it is larger than the sum of its proper divisors (1).

2408642857 is an equidigital number, since it uses as much as digits as its factorization.

2408642857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 860160, while the sum is 46.

The square root of 2408642857 is about 49077.9263722501. The cubic root of 2408642857 is about 1340.4711451223.

The spelling of 2408642857 in words is "two billion, four hundred eight million, six hundred forty-two thousand, eight hundred fifty-seven".