28880966923 has 2 divisors, whose sum is σ = 28880966924. Its totient is φ = 28880966922.

The previous prime is 28880966903. The next prime is 28880966981. The reversal of 28880966923 is 32966908882.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28880966923 is a prime.

It is a super-2 number, since 2×28880966923² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28880966903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14440483461 + 14440483462.

It is an arithmetic number, because the mean of its divisors is an integer number (14440483462).

Almost surely, 2^28880966923 is an apocalyptic number.

28880966923 is a deficient number, since it is larger than the sum of its proper divisors (1).

28880966923 is an equidigital number, since it uses as much as digits as its factorization.

28880966923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17915904, while the sum is 61.

The spelling of 28880966923 in words is "twenty-eight billion, eight hundred eighty million, nine hundred sixty-six thousand, nine hundred twenty-three".