28734808001 has 4 divisors (see below), whose sum is σ = 28735383600. Its totient is φ = 28734232404.

The previous prime is 28734807953. The next prime is 28734808009. The reversal of 28734808001 is 10080843782.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10080843782 = 2 ⋅5040421891.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28734808001 is a prime.

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 28734808001.

It is not an unprimeable number, because it can be changed into a prime (28734808009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204971 + ... + 315408.

It is an arithmetic number, because the mean of its divisors is an integer number (7183845900).

Almost surely, 2^28734808001 is an apocalyptic number.

It is an amenable number.

28734808001 is a deficient number, since it is larger than the sum of its proper divisors (575599).

28734808001 is an equidigital number, since it uses as much as digits as its factorization.

28734808001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575598.

The product of its (nonzero) digits is 86016, while the sum is 41.

The spelling of 28734808001 in words is "twenty-eight billion, seven hundred thirty-four million, eight hundred eight thousand, one".