28760705073 has 24 divisors (see below), whose sum is σ = 43240951936. Its totient is φ = 19103007600.

The previous prime is 28760705041. The next prime is 28760705087. The reversal of 28760705073 is 37050706782.

28760705073 is a `hidden beast` number, since 2 + 8 + 76 + 0 + 70 + 507 + 3 = 666.

It is not a de Polignac number, because 28760705073 - 2⁵ = 28760705041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28760705473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152518 + ... + 284223.

Almost surely, 2^28760705073 is an apocalyptic number.

It is an amenable number.

28760705073 is a deficient number, since it is larger than the sum of its proper divisors (14480246863).

28760705073 is an equidigital number, since it uses as much as digits as its factorization.

28760705073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437027 (or 437015 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 45.

The spelling of 28760705073 in words is "twenty-eight billion, seven hundred sixty million, seven hundred five thousand, seventy-three".