28642503023 has 12 divisors (see below), whose sum is σ = 30492607992. Its totient is φ = 26899048320.

The previous prime is 28642502981. The next prime is 28642503067. The reversal of 28642503023 is 32030524682.

It is a de Polignac number, because none of the positive numbers 2^k-28642503023 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 (28642503523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25736 + ... + 240722.

It is an arithmetic number, because the mean of its divisors is an integer number (2541050666).

Almost surely, 2^28642503023 is an apocalyptic number.

28642503023 is a deficient number, since it is larger than the sum of its proper divisors (1850104969).

28642503023 is a wasteful number, since it uses less digits than its factorization.

28642503023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215482 (or 215465 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 28642503023 in words is "twenty-eight billion, six hundred forty-two million, five hundred three thousand, twenty-three".