12053844869 has 4 divisors (see below), whose sum is σ = 13149648960. Its totient is φ = 10958040780.

The previous prime is 12053844863. The next prime is 12053844871. The reversal of 12053844869 is 96844835021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12053844869 - 2³² = 7758877573 is a prime.

It is a super-2 number, since 2×12053844869² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12053844863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547902029 + ... + 547902050.

It is an arithmetic number, because the mean of its divisors is an integer number (3287412240).

Almost surely, 2^12053844869 is an apocalyptic number.

It is an amenable number.

12053844869 is a deficient number, since it is larger than the sum of its proper divisors (1095804091).

12053844869 is a wasteful number, since it uses less digits than its factorization.

12053844869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095804090.

The product of its (nonzero) digits is 1658880, while the sum is 50.

The spelling of 12053844869 in words is "twelve billion, fifty-three million, eight hundred forty-four thousand, eight hundred sixty-nine".