212214742857 has 96 divisors (see below), whose sum is σ = 348016032000. Its totient is φ = 128443594752.

The previous prime is 212214742847. The next prime is 212214742889. The reversal of 212214742857 is 758247412212.

212214742857 is a `hidden beast` number, since 2 + 1 + 2 + 214 + 7 + 428 + 5 + 7 = 666.

It is not a de Polignac number, because 212214742857 - 2³⁵ = 177855004489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212214742847) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 55947153 + ... + 55950945.

It is an arithmetic number, because the mean of its divisors is an integer number (3625167000).

Almost surely, 2^212214742857 is an apocalyptic number.

212214742857 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

212214742857 is a deficient number, since it is larger than the sum of its proper divisors (135801289143).

212214742857 is a wasteful number, since it uses less digits than its factorization.

212214742857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4109 (or 4097 counting only the distinct ones).

The product of its digits is 501760, while the sum is 45.

The spelling of 212214742857 in words is "two hundred twelve billion, two hundred fourteen million, seven hundred forty-two thousand, eight hundred fifty-seven".