28463502423 has 4 divisors (see below), whose sum is σ = 37951336568. Its totient is φ = 18975668280.

The previous prime is 28463502281. The next prime is 28463502427. The reversal of 28463502423 is 32420536482.

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

It is not a de Polignac number, because 28463502423 - 2¹⁷ = 28463371351 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 (28463502427) 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, 4743917068 + ... + 4743917073.

It is an arithmetic number, because the mean of its divisors is an integer number (9487834142).

Almost surely, 2^28463502423 is an apocalyptic number.

28463502423 is a deficient number, since it is larger than the sum of its proper divisors (9487834145).

28463502423 is an equidigital number, since it uses as much as digits as its factorization.

28463502423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9487834144.

The product of its (nonzero) digits is 276480, while the sum is 39.

The spelling of 28463502423 in words is "twenty-eight billion, four hundred sixty-three million, five hundred two thousand, four hundred twenty-three".