1906941266209 has 16 divisors (see below), whose sum is σ = 2184156057600. Its totient is φ = 1630928877264.

The previous prime is 1906941266179. The next prime is 1906941266233. The reversal of 1906941266209 is 9026621496091.

It is a cyclic number.

It is not a de Polignac number, because 1906941266209 - 2¹¹ = 1906941264161 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1906941266209.

It is not an unprimeable number, because it can be changed into a prime (1906941266299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5985072 + ... + 6295630.

It is an arithmetic number, because the mean of its divisors is an integer number (136509753600).

Almost surely, 2^{1906941266209} is an apocalyptic number.

It is an amenable number.

1906941266209 is a deficient number, since it is larger than the sum of its proper divisors (277214791391).

1906941266209 is a wasteful number, since it uses less digits than its factorization.

1906941266209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312492.

The product of its (nonzero) digits is 2519424, while the sum is 55.

The spelling of 1906941266209 in words is "one trillion, nine hundred six billion, nine hundred forty-one million, two hundred sixty-six thousand, two hundred nine".