28060787811 has 32 divisors (see below), whose sum is σ = 45928384000. Its totient is φ = 15190791840.

The previous prime is 28060787803. The next prime is 28060787857. The reversal of 28060787811 is 11878706082.

It is not a de Polignac number, because 28060787811 - 2³ = 28060787803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28060785811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 698080 + ... + 737181.

It is an arithmetic number, because the mean of its divisors is an integer number (1435262000).

Almost surely, 2^28060787811 is an apocalyptic number.

28060787811 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

28060787811 is a deficient number, since it is larger than the sum of its proper divisors (17867596189).

28060787811 is a wasteful number, since it uses less digits than its factorization.

28060787811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435304 (or 1435290 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 48.

The spelling of 28060787811 in words is "twenty-eight billion, sixty million, seven hundred eighty-seven thousand, eight hundred eleven".