2222857657 has 2 divisors, whose sum is σ = 2222857658. Its totient is φ = 2222857656.

The previous prime is 2222857631. The next prime is 2222857771. The reversal of 2222857657 is 7567582222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1839637881 + 383219776 = 42891^2 + 19576^2 .

It is a cyclic number.

It is not a de Polignac number, because 2222857657 - 2²⁷ = 2088639929 is a prime.

It is not a weakly prime, because it can be changed into another prime (2222857607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111428828 + 1111428829.

It is an arithmetic number, because the mean of its divisors is an integer number (1111428829).

Almost surely, 2^2222857657 is an apocalyptic number.

It is an amenable number.

2222857657 is a deficient number, since it is larger than the sum of its proper divisors (1).

2222857657 is an equidigital number, since it uses as much as digits as its factorization.

2222857657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 940800, while the sum is 46.

The square root of 2222857657 is about 47147.1914009732. The cubic root of 2222857657 is about 1305.0802506885.

The spelling of 2222857657 in words is "two billion, two hundred twenty-two million, eight hundred fifty-seven thousand, six hundred fifty-seven".