28806796144 has 40 divisors (see below), whose sum is σ = 65342255328. Its totient is φ = 12044651520.

The previous prime is 28806796141. The next prime is 28806796147. The reversal of 28806796144 is 44169760882.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28806796141) and next prime (28806796147).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28806796141) 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, 3132037 + ... + 3141220.

Almost surely, 2^28806796144 is an apocalyptic number.

It is an amenable number.

28806796144 is an abundant number, since it is smaller than the sum of its proper divisors (36535459184).

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

28806796144 is a wasteful number, since it uses less digits than its factorization.

28806796144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6273313 (or 6273307 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 55.

The spelling of 28806796144 in words is "twenty-eight billion, eight hundred six million, seven hundred ninety-six thousand, one hundred forty-four".