28710068805 has 48 divisors (see below), whose sum is σ = 54302788800. Its totient is φ = 13916275200.

The previous prime is 28710068801. The next prime is 28710068813. The reversal of 28710068805 is 50886001782.

It is not a de Polignac number, because 28710068805 - 2² = 28710068801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28710068801) 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, 2970621 + ... + 2980269.

It is an arithmetic number, because the mean of its divisors is an integer number (1131308100).

Almost surely, 2^28710068805 is an apocalyptic number.

It is an amenable number.

28710068805 is a deficient number, since it is larger than the sum of its proper divisors (25592719995).

28710068805 is a wasteful number, since it uses less digits than its factorization.

28710068805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15682 (or 15679 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The spelling of 28710068805 in words is "twenty-eight billion, seven hundred ten million, sixty-eight thousand, eight hundred five".