4123645212006 has 48 divisors (see below), whose sum is σ = 8981398153728. Its totient is φ = 1367345548800.

The previous prime is 4123645211981. The next prime is 4123645212019. The reversal of 4123645212006 is 6002125463214.

4123645212006 is a `hidden beast` number, since 4 + 1 + 2 + 3 + 645 + 2 + 1 + 2 + 0 + 0 + 6 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22144246 + ... + 22329686.

It is an arithmetic number, because the mean of its divisors is an integer number (187112461536).

Almost surely, 2^{4123645212006} is an apocalyptic number.

4123645212006 is an abundant number, since it is smaller than the sum of its proper divisors (4857752941722).

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

4123645212006 is a wasteful number, since it uses less digits than its factorization.

4123645212006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191917 (or 191914 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 4123645212006 in words is "four trillion, one hundred twenty-three billion, six hundred forty-five million, two hundred twelve thousand, six".