28547269623 has 12 divisors (see below), whose sum is σ = 41302220440. Its totient is φ = 19000462896.

The previous prime is 28547269591. The next prime is 28547269633. The reversal of 28547269623 is 32696274582.

28547269623 is a `hidden beast` number, since 2 + 8 + 5 + 4 + 7 + 2 + 6 + 9 + 623 = 666.

It is not a de Polignac number, because 28547269623 - 2⁵ = 28547269591 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 28547269623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28547269633) 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, 2581693 + ... + 2592726.

Almost surely, 2^28547269623 is an apocalyptic number.

28547269623 is a deficient number, since it is larger than the sum of its proper divisors (12754950817).

28547269623 is a wasteful number, since it uses less digits than its factorization.

28547269623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5175038 (or 5175035 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The spelling of 28547269623 in words is "twenty-eight billion, five hundred forty-seven million, two hundred sixty-nine thousand, six hundred twenty-three".