28782704568 has 16 divisors (see below), whose sum is σ = 71956761480. Its totient is φ = 9594234848.

The previous prime is 28782704567. The next prime is 28782704569. The reversal of 28782704568 is 86540728782.

It is an interprime number because it is at equal distance from previous prime (28782704567) and next prime (28782704569).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28782704567) 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, 599639655 + ... + 599639702.

Almost surely, 2^28782704568 is an apocalyptic number.

It is an amenable number.

28782704568 is an abundant number, since it is smaller than the sum of its proper divisors (43174056912).

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

28782704568 is a wasteful number, since it uses less digits than its factorization.

28782704568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199279366 (or 1199279362 counting only the distinct ones).

The product of its (nonzero) digits is 12042240, while the sum is 57.

The spelling of 28782704568 in words is "twenty-eight billion, seven hundred eighty-two million, seven hundred four thousand, five hundred sixty-eight".