12900043441 has 8 divisors (see below), whose sum is σ = 12945933000. Its totient is φ = 12854231040.

The previous prime is 12900043427. The next prime is 12900043447. The reversal of 12900043441 is 14434000921.

It can be written as a sum of positive squares in 4 ways, for example, as 2885838400 + 10014205041 = 53720^2 + 100071^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12900043441 - 2⁹ = 12900042929 is a prime.

It is a super-2 number, since 2×12900043441² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12900043447) 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, 326601 + ... + 363961.

It is an arithmetic number, because the mean of its divisors is an integer number (1618241625).

Almost surely, 2^12900043441 is an apocalyptic number.

It is an amenable number.

12900043441 is a deficient number, since it is larger than the sum of its proper divisors (45889559).

12900043441 is an equidigital number, since it uses as much as digits as its factorization.

12900043441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38579.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 12900043441 in words is "twelve billion, nine hundred million, forty-three thousand, four hundred forty-one".