28321051927 has 16 divisors (see below), whose sum is σ = 34321128192. Its totient is φ = 22813718400.

The previous prime is 28321051921. The next prime is 28321051937. The reversal of 28321051927 is 72915012382.

It is a cyclic number.

It is not a de Polignac number, because 28321051927 - 2³¹ = 26173568279 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28321051927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28321051921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92949 + ... + 255502.

It is an arithmetic number, because the mean of its divisors is an integer number (2145070512).

Almost surely, 2^28321051927 is an apocalyptic number.

28321051927 is a deficient number, since it is larger than the sum of its proper divisors (6000076265).

28321051927 is a wasteful number, since it uses less digits than its factorization.

28321051927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349158.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 28321051927 in words is "twenty-eight billion, three hundred twenty-one million, fifty-one thousand, nine hundred twenty-seven".