28814916293 has 2 divisors, whose sum is σ = 28814916294. Its totient is φ = 28814916292.

The previous prime is 28814916289. The next prime is 28814916311. The reversal of 28814916293 is 39261941882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28715674849 + 99241444 = 169457^2 + 9962^2 .

It is a cyclic number.

It is not a de Polignac number, because 28814916293 - 2² = 28814916289 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28814919293) 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, 14407458146 + 14407458147.

It is an arithmetic number, because the mean of its divisors is an integer number (14407458147).

Almost surely, 2^28814916293 is an apocalyptic number.

It is an amenable number.

28814916293 is a deficient number, since it is larger than the sum of its proper divisors (1).

28814916293 is an equidigital number, since it uses as much as digits as its factorization.

28814916293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1492992, while the sum is 53.

The spelling of 28814916293 in words is "twenty-eight billion, eight hundred fourteen million, nine hundred sixteen thousand, two hundred ninety-three".