28207348023 has 4 divisors (see below), whose sum is σ = 37609797368. Its totient is φ = 18804898680.

The previous prime is 28207348007. The next prime is 28207348033. The reversal of 28207348023 is 32084370282.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 28207348023 - 2⁴ = 28207348007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28207348033) 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, 4701224668 + ... + 4701224673.

It is an arithmetic number, because the mean of its divisors is an integer number (9402449342).

Almost surely, 2^28207348023 is an apocalyptic number.

28207348023 is a deficient number, since it is larger than the sum of its proper divisors (9402449345).

28207348023 is an equidigital number, since it uses as much as digits as its factorization.

28207348023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9402449344.

The product of its (nonzero) digits is 129024, while the sum is 39.

The spelling of 28207348023 in words is "twenty-eight billion, two hundred seven million, three hundred forty-eight thousand, twenty-three".