28080513311 has 2 divisors, whose sum is σ = 28080513312. Its totient is φ = 28080513310.

The previous prime is 28080513301. The next prime is 28080513343. The reversal of 28080513311 is 11331508082.

It is an a-pointer prime, because the next prime (28080513343) can be obtained adding 28080513311 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28080513311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28080513301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14040256655 + 14040256656.

It is an arithmetic number, because the mean of its divisors is an integer number (14040256656).

Almost surely, 2^28080513311 is an apocalyptic number.

28080513311 is a deficient number, since it is larger than the sum of its proper divisors (1).

28080513311 is an equidigital number, since it uses as much as digits as its factorization.

28080513311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 32.

The spelling of 28080513311 in words is "twenty-eight billion, eighty million, five hundred thirteen thousand, three hundred eleven".