857840422288 has 10 divisors (see below), whose sum is σ = 1662065818214. Its totient is φ = 428920211136.

The previous prime is 857840422277. The next prime is 857840422337. The reversal of 857840422288 is 882224048758.

It can be written as a sum of positive squares in only one way, i.e., 698006779024 + 159833643264 = 835468^2 + 399792^2 .

It is a super-2 number, since 2×857840422288² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26807513181 + ... + 26807513212.

Almost surely, 2^857840422288 is an apocalyptic number.

It is an amenable number.

857840422288 is a deficient number, since it is larger than the sum of its proper divisors (804225395926).

857840422288 is a wasteful number, since it uses less digits than its factorization.

857840422288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53615026401 (or 53615026395 counting only the distinct ones).

The product of its (nonzero) digits is 18350080, while the sum is 58.

The spelling of 857840422288 in words is "eight hundred fifty-seven billion, eight hundred forty million, four hundred twenty-two thousand, two hundred eighty-eight".