28000519305 has 48 divisors (see below), whose sum is σ = 49814001216. Its totient is φ = 13319637760.

The previous prime is 28000519291. The next prime is 28000519343. The reversal of 28000519305 is 50391500082.

It is not a de Polignac number, because 28000519305 - 2⁴ = 28000519289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 433279 + ... + 493691.

It is an arithmetic number, because the mean of its divisors is an integer number (1037791692).

Almost surely, 2^28000519305 is an apocalyptic number.

It is an amenable number.

28000519305 is a deficient number, since it is larger than the sum of its proper divisors (21813481911).

28000519305 is a wasteful number, since it uses less digits than its factorization.

28000519305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60538 (or 60485 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The spelling of 28000519305 in words is "twenty-eight billion, five hundred nineteen thousand, three hundred five".