857128802016 has 24 divisors (see below), whose sum is σ = 2249963105544. Its totient is φ = 285709600640.

The previous prime is 857128801993. The next prime is 857128802021. The reversal of 857128802016 is 610208821758.

857128802016 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 4464212415 + ... + 4464212606.

It is an arithmetic number, because the mean of its divisors is an integer number (93748462731).

Almost surely, 2^857128802016 is an apocalyptic number.

It is an amenable number.

857128802016 is an abundant number, since it is smaller than the sum of its proper divisors (1392834303528).

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

857128802016 is a wasteful number, since it uses less digits than its factorization.

857128802016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8928425034 (or 8928425026 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 48.

The spelling of 857128802016 in words is "eight hundred fifty-seven billion, one hundred twenty-eight million, eight hundred two thousand, sixteen".