28763617368 has 64 divisors (see below), whose sum is σ = 74682540000. Its totient is φ = 9223898112.

The previous prime is 28763617367. The next prime is 28763617369. The reversal of 28763617368 is 86371636782.

It is an interprime number because it is at equal distance from previous prime (28763617367) and next prime (28763617369).

It is a super-2 number, since 2×28763617368² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28763617367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102943 + ... + 261006.

Almost surely, 2^28763617368 is an apocalyptic number.

It is an amenable number.

28763617368 is an abundant number, since it is smaller than the sum of its proper divisors (45918922632).

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

28763617368 is a wasteful number, since it uses less digits than its factorization.

28763617368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364084 (or 364080 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 57.

The spelling of 28763617368 in words is "twenty-eight billion, seven hundred sixty-three million, six hundred seventeen thousand, three hundred sixty-eight".