28529010561 has 8 divisors (see below), whose sum is σ = 38316335904. Its totient is φ = 18880512800.

The previous prime is 28529010529. The next prime is 28529010563. The reversal of 28529010561 is 16501092582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28529010561 - 2⁵ = 28529010529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28529010563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34706415 + ... + 34707236.

It is an arithmetic number, because the mean of its divisors is an integer number (4789541988).

Almost surely, 2^28529010561 is an apocalyptic number.

It is an amenable number.

28529010561 is a deficient number, since it is larger than the sum of its proper divisors (9787325343).

28529010561 is a wasteful number, since it uses less digits than its factorization.

28529010561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69413791.

The product of its (nonzero) digits is 43200, while the sum is 39.

The spelling of 28529010561 in words is "twenty-eight billion, five hundred twenty-nine million, ten thousand, five hundred sixty-one".