28928365727 has 8 divisors (see below), whose sum is σ = 29086117632. Its totient is φ = 28770989400.

The previous prime is 28928365681. The next prime is 28928365757. The reversal of 28928365727 is 72756382982.

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 28928365727 - 2⁶ = 28928365663 is a prime.

It is a super-4 number, since 4×28928365727⁴ (a number of 43 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28928365757) 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, 61268 + ... + 248214.

It is an arithmetic number, because the mean of its divisors is an integer number (3635764704).

Almost surely, 2^28928365727 is an apocalyptic number.

28928365727 is a deficient number, since it is larger than the sum of its proper divisors (157751905).

28928365727 is a wasteful number, since it uses less digits than its factorization.

28928365727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187789.

The product of its digits is 20321280, while the sum is 59.

The spelling of 28928365727 in words is "twenty-eight billion, nine hundred twenty-eight million, three hundred sixty-five thousand, seven hundred twenty-seven".