28885668783 has 48 divisors (see below), whose sum is σ = 41342584320. Its totient is φ = 17933954688.

The previous prime is 28885668769. The next prime is 28885668803. The reversal of 28885668783 is 38786658882.

It is not a de Polignac number, because 28885668783 - 2⁶ = 28885668719 is a prime.

It is a super-2 number, since 2×28885668783² (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 (28885663783) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24212035 + ... + 24213227.

It is an arithmetic number, because the mean of its divisors is an integer number (861303840).

Almost surely, 2^28885668783 is an apocalyptic number.

28885668783 is a deficient number, since it is larger than the sum of its proper divisors (12456915537).

28885668783 is a wasteful number, since it uses less digits than its factorization.

28885668783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596 (or 1577 counting only the distinct ones).

The product of its digits is 247726080, while the sum is 69.

Subtracting 28885668783 from its reverse (38786658882), we obtain a palindrome (9900990099).

The spelling of 28885668783 in words is "twenty-eight billion, eight hundred eighty-five million, six hundred sixty-eight thousand, seven hundred eighty-three".