12038905611 has 8 divisors (see below), whose sum is σ = 17835415760. Its totient is φ = 8025937056.

The previous prime is 12038905597. The next prime is 12038905643. The reversal of 12038905611 is 11650983021.

12038905611 is a `hidden beast` number, since 1 + 2 + 0 + 3 + 8 + 90 + 561 + 1 = 666.

It is not a de Polignac number, because 12038905611 - 2⁵ = 12038905579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12038905651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222942670 + ... + 222942723.

It is an arithmetic number, because the mean of its divisors is an integer number (2229426970).

Almost surely, 2^12038905611 is an apocalyptic number.

12038905611 is a deficient number, since it is larger than the sum of its proper divisors (5796510149).

12038905611 is an equidigital number, since it uses as much as digits as its factorization.

12038905611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445885402 (or 445885396 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The spelling of 12038905611 in words is "twelve billion, thirty-eight million, nine hundred five thousand, six hundred eleven".