12855662757 has 48 divisors (see below), whose sum is σ = 22319431680. Its totient is φ = 6971269536.

The previous prime is 12855662731. The next prime is 12855662777. The reversal of 12855662757 is 75726655821.

12855662757 is a `hidden beast` number, since 1 + 2 + 8 + 5 + 5 + 6 + 627 + 5 + 7 = 666.

It is not a de Polignac number, because 12855662757 - 2⁶ = 12855662693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12855662777) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 149094 + ... + 218952.

It is an arithmetic number, because the mean of its divisors is an integer number (464988160).

Almost surely, 2^12855662757 is an apocalyptic number.

It is an amenable number.

12855662757 is a deficient number, since it is larger than the sum of its proper divisors (9463768923).

12855662757 is a wasteful number, since it uses less digits than its factorization.

12855662757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70022 (or 70019 counting only the distinct ones).

The product of its digits is 7056000, while the sum is 54.

The spelling of 12855662757 in words is "twelve billion, eight hundred fifty-five million, six hundred sixty-two thousand, seven hundred fifty-seven".