28043127001 has 4 divisors (see below), whose sum is σ = 28100710912. Its totient is φ = 27985543092.

The previous prime is 28043126999. The next prime is 28043127029. The reversal of 28043127001 is 10072134082.

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 28043127001 - 2¹ = 28043126999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28043127041) 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, 28791225 + ... + 28792198.

It is an arithmetic number, because the mean of its divisors is an integer number (7025177728).

Almost surely, 2^28043127001 is an apocalyptic number.

It is an amenable number.

28043127001 is a deficient number, since it is larger than the sum of its proper divisors (57583911).

28043127001 is an equidigital number, since it uses as much as digits as its factorization.

28043127001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57583910.

The product of its (nonzero) digits is 2688, while the sum is 28.

The spelling of 28043127001 in words is "twenty-eight billion, forty-three million, one hundred twenty-seven thousand, one".