4878785572857 has 12 divisors (see below), whose sum is σ = 8053868247360. Its totient is φ = 2787877470168.

The previous prime is 4878785572831. The next prime is 4878785572883. The reversal of 4878785572857 is 7582755878784.

4878785572857 is a `hidden beast` number, since 4 + 8 + 7 + 8 + 7 + 8 + 557 + 2 + 8 + 57 = 666.

It is an interprime number because it is at equal distance from previous prime (4878785572831) and next prime (4878785572883).

It is not a de Polignac number, because 4878785572857 - 2¹⁸ = 4878785310713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4878785572457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38720520357 + ... + 38720520482.

It is an arithmetic number, because the mean of its divisors is an integer number (671155687280).

Almost surely, 2^{4878785572857} is an apocalyptic number.

It is an amenable number.

4878785572857 is a deficient number, since it is larger than the sum of its proper divisors (3175082674503).

4878785572857 is a wasteful number, since it uses less digits than its factorization.

4878785572857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77441040852 (or 77441040849 counting only the distinct ones).

The product of its digits is 9834496000, while the sum is 81.

The spelling of 4878785572857 in words is "four trillion, eight hundred seventy-eight billion, seven hundred eighty-five million, five hundred seventy-two thousand, eight hundred fifty-seven".