857893398272 has 18 divisors (see below), whose sum is σ = 1712435650968. Its totient is φ = 428946699008.

The previous prime is 857893398251. The next prime is 857893398281. The reversal of 857893398272 is 272893398758.

It is a junction number, because it is equal to n+sod(n) for n = 857893398196 and 857893398205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1675572788 + ... + 1675573299.

Almost surely, 2^857893398272 is an apocalyptic number.

It is an amenable number.

857893398272 is a deficient number, since it is larger than the sum of its proper divisors (854542252696).

857893398272 is an equidigital number, since it uses as much as digits as its factorization.

857893398272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3351146103 (or 3351146089 counting only the distinct ones).

The product of its digits is 365783040, while the sum is 71.

The spelling of 857893398272 in words is "eight hundred fifty-seven billion, eight hundred ninety-three million, three hundred ninety-eight thousand, two hundred seventy-two".