28563768830 has 16 divisors (see below), whose sum is σ = 51424338240. Its totient is φ = 11423384352.

The previous prime is 28563768811. The next prime is 28563768853. The reversal of 28563768830 is 3886736582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208310 + ... + 317049.

It is an arithmetic number, because the mean of its divisors is an integer number (3214021140).

Almost surely, 2^28563768830 is an apocalyptic number.

28563768830 is a deficient number, since it is larger than the sum of its proper divisors (22860569410).

28563768830 is a wasteful number, since it uses less digits than its factorization.

28563768830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530803.

The product of its (nonzero) digits is 11612160, while the sum is 56.

The spelling of 28563768830 in words is "twenty-eight billion, five hundred sixty-three million, seven hundred sixty-eight thousand, eight hundred thirty".