28288824536 has 32 divisors (see below), whose sum is σ = 60660295680. Its totient is φ = 12115504800.

The previous prime is 28288824533. The next prime is 28288824547. The reversal of 28288824536 is 63542888282.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28288824533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89330 + ... + 254081.

It is an arithmetic number, because the mean of its divisors is an integer number (1895634240).

Almost surely, 2^28288824536 is an apocalyptic number.

It is an amenable number.

28288824536 is an abundant number, since it is smaller than the sum of its proper divisors (32371471144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28288824536 is a wasteful number, since it uses less digits than its factorization.

28288824536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344895 (or 344891 counting only the distinct ones).

The product of its digits is 11796480, while the sum is 56.

The spelling of 28288824536 in words is "twenty-eight billion, two hundred eighty-eight million, eight hundred twenty-four thousand, five hundred thirty-six".