28126238723041 has 4 divisors (see below), whose sum is σ = 28126312100784. Its totient is φ = 28126165345300.

The previous prime is 28126238723029. The next prime is 28126238723081. The reversal of 28126238723041 is 14032783262182.

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 a de Polignac number, because none of the positive numbers 2^k-28126238723041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28126238723081) 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, 36110875 + ... + 36881536.

It is an arithmetic number, because the mean of its divisors is an integer number (7031578025196).

Almost surely, 2^{28126238723041} is an apocalyptic number.

It is an amenable number.

28126238723041 is a deficient number, since it is larger than the sum of its proper divisors (73377743).

28126238723041 is an equidigital number, since it uses as much as digits as its factorization.

28126238723041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73377742.

The product of its (nonzero) digits is 1548288, while the sum is 49.

The spelling of 28126238723041 in words is "twenty-eight trillion, one hundred twenty-six billion, two hundred thirty-eight million, seven hundred twenty-three thousand, forty-one".