12042933505849 has 15 divisors (see below), whose sum is σ = 12713302744863. Its totient is φ = 11407908060072.

The previous prime is 12042933505831. The next prime is 12042933505871. The reversal of 12042933505849 is 94850533924021.

The square root of 12042933505849 is 3470293.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 11997875802025 + 45057703824 = 3463795^2 + 212268^2 .

It is not a de Polignac number, because 12042933505849 - 2²⁹ = 12042396634937 is a prime.

It is a super-2 number, since 2×12042933505849² (a number of 27 digits) contains 22 as substring.

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 12042933505849.

It is not an unprimeable number, because it can be changed into a prime (12042933505819) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1252770967 + ... + 1252780579.

Almost surely, 2^{12042933505849} is an apocalyptic number.

12042933505849 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12042933505849 is the 3470293-rd square number.

12042933505849 is the 1735147-th centered octagonal number.

It is an amenable number.

12042933505849 is a deficient number, since it is larger than the sum of its proper divisors (670369239014).

12042933505849 is an frugal number, since it uses more digits than its factorization.

12042933505849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19302 (or 9632 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 55.

The spelling of 12042933505849 in words is "twelve trillion, forty-two billion, nine hundred thirty-three million, five hundred five thousand, eight hundred forty-nine".