53781030828 has 36 divisors (see below), whose sum is σ = 155367423120. Its totient is φ = 15366008736.

The previous prime is 53781030803. The next prime is 53781030829. The reversal of 53781030828 is 82803018735.

53781030828 is a `hidden beast` number, since 537 + 8 + 1 + 0 + 30 + 82 + 8 = 666.

53781030828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (53781030829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106708143 + ... + 106708646.

Almost surely, 2^53781030828 is an apocalyptic number.

It is an amenable number.

53781030828 is an abundant number, since it is smaller than the sum of its proper divisors (101586392292).

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

53781030828 is a wasteful number, since it uses less digits than its factorization.

53781030828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213416806 (or 213416801 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 53781030828 in words is "fifty-three billion, seven hundred eighty-one million, thirty thousand, eight hundred twenty-eight".