28563507780030 has 48 divisors (see below), whose sum is σ = 77494038504480. Its totient is φ = 7285764302784.

The previous prime is 28563507779981. The next prime is 28563507780037. The reversal of 28563507780030 is 3008770536582.

28563507780030 is a `hidden beast` number, since 2 + 8 + 5 + 63 + 507 + 78 + 0 + 0 + 3 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28563507780037) 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, 6899395945 + ... + 6899400084.

It is an arithmetic number, because the mean of its divisors is an integer number (1614459135510).

Almost surely, 2^{28563507780030} is an apocalyptic number.

28563507780030 is an abundant number, since it is smaller than the sum of its proper divisors (48930530724450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28563507780030 is a wasteful number, since it uses less digits than its factorization.

28563507780030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13798796065 (or 13798796062 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 54.

The spelling of 28563507780030 in words is "twenty-eight trillion, five hundred sixty-three billion, five hundred seven million, seven hundred eighty thousand, thirty".