28528260177 has 8 divisors (see below), whose sum is σ = 38136996864. Its totient is φ = 18969181808.

The previous prime is 28528260073. The next prime is 28528260181. The reversal of 28528260177 is 77106282582.

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 28528260177 - 2²⁸ = 28259824721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28528268177) 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, 12413238 + ... + 12415535.

It is an arithmetic number, because the mean of its divisors is an integer number (4767124608).

Almost surely, 2^28528260177 is an apocalyptic number.

It is an amenable number.

28528260177 is a deficient number, since it is larger than the sum of its proper divisors (9608736687).

28528260177 is a wasteful number, since it uses less digits than its factorization.

28528260177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24829159.

The product of its (nonzero) digits is 752640, while the sum is 48.

The spelling of 28528260177 in words is "twenty-eight billion, five hundred twenty-eight million, two hundred sixty thousand, one hundred seventy-seven".