4012138006206 has 32 divisors (see below), whose sum is σ = 8753976288000. Its totient is φ = 1215768751680.

The previous prime is 4012138006169. The next prime is 4012138006207. The reversal of 4012138006206 is 6026008312104.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4012138006207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1944370 + ... + 3435818.

It is an arithmetic number, because the mean of its divisors is an integer number (273561759000).

Almost surely, 2^{4012138006206} is an apocalyptic number.

4012138006206 is an abundant number, since it is smaller than the sum of its proper divisors (4741838281794).

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

4012138006206 is a wasteful number, since it uses less digits than its factorization.

4012138006206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1532224.

The product of its (nonzero) digits is 13824, while the sum is 33.

The spelling of 4012138006206 in words is "four trillion, twelve billion, one hundred thirty-eight million, six thousand, two hundred six".