28979877241 has 8 divisors (see below), whose sum is σ = 33140954304. Its totient is φ = 24824073840.

The previous prime is 28979877217. The next prime is 28979877257. The reversal of 28979877241 is 14277897982.

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 28979877241 - 2¹¹ = 28979875193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28979878241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1306630 + ... + 1328623.

It is an arithmetic number, because the mean of its divisors is an integer number (4142619288).

Almost surely, 2^28979877241 is an apocalyptic number.

It is an amenable number.

28979877241 is a deficient number, since it is larger than the sum of its proper divisors (4161077063).

28979877241 is a wasteful number, since it uses less digits than its factorization.

28979877241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2636831.

The product of its digits is 28449792, while the sum is 64.

The spelling of 28979877241 in words is "twenty-eight billion, nine hundred seventy-nine million, eight hundred seventy-seven thousand, two hundred forty-one".