28944576001 has 4 divisors (see below), whose sum is σ = 31575901104. Its totient is φ = 26313250900.

The previous prime is 28944575981. The next prime is 28944576007. The reversal of 28944576001 is 10067544982.

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 28944576001 - 2⁹ = 28944575489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28944576007) 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, 1315662535 + ... + 1315662556.

It is an arithmetic number, because the mean of its divisors is an integer number (7893975276).

Almost surely, 2^28944576001 is an apocalyptic number.

It is an amenable number.

28944576001 is a deficient number, since it is larger than the sum of its proper divisors (2631325103).

28944576001 is a wasteful number, since it uses less digits than its factorization.

28944576001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2631325102.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 28944576001 in words is "twenty-eight billion, nine hundred forty-four million, five hundred seventy-six thousand, one".