28671790528 has 28 divisors (see below), whose sum is σ = 58857504840. Its totient is φ = 13841553152.

The previous prime is 28671790523. The next prime is 28671790541. The reversal of 28671790528 is 82509717682.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28671790523) 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, 7722226 + ... + 7725937.

Almost surely, 2^28671790528 is an apocalyptic number.

It is an amenable number.

28671790528 is an abundant number, since it is smaller than the sum of its proper divisors (30185714312).

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

28671790528 is a wasteful number, since it uses less digits than its factorization.

28671790528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15448204 (or 15448194 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 55.

The spelling of 28671790528 in words is "twenty-eight billion, six hundred seventy-one million, seven hundred ninety thousand, five hundred twenty-eight".