857148042852 has 36 divisors (see below), whose sum is σ = 2166715030480. Its totient is φ = 285711365232.

The previous prime is 857148042757. The next prime is 857148042869. The reversal of 857148042852 is 258240841758.

857148042852 is a `hidden beast` number, since 8 + 5 + 71 + 480 + 42 + 8 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2602299 + ... + 2913117.

Almost surely, 2^857148042852 is an apocalyptic number.

It is an amenable number.

857148042852 is an abundant number, since it is smaller than the sum of its proper divisors (1309566987628).

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

857148042852 is a wasteful number, since it uses less digits than its factorization.

857148042852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387432 (or 387427 counting only the distinct ones).

The product of its (nonzero) digits is 5734400, while the sum is 54.

The spelling of 857148042852 in words is "eight hundred fifty-seven billion, one hundred forty-eight million, forty-two thousand, eight hundred fifty-two".