857093091996 has 12 divisors (see below), whose sum is σ = 1999883881352. Its totient is φ = 285697697328.

The previous prime is 857093091983. The next prime is 857093092007. The reversal of 857093091996 is 699190390758.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35712212155 + ... + 35712212178.

Almost surely, 2^857093091996 is an apocalyptic number.

It is an amenable number.

857093091996 is an abundant number, since it is smaller than the sum of its proper divisors (1142790789356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

857093091996 is a wasteful number, since it uses less digits than its factorization.

857093091996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71424424340 (or 71424424338 counting only the distinct ones).

The product of its (nonzero) digits is 33067440, while the sum is 66.

The spelling of 857093091996 in words is "eight hundred fifty-seven billion, ninety-three million, ninety-one thousand, nine hundred ninety-six".