28976877739 has 4 divisors (see below), whose sum is σ = 29468011320. Its totient is φ = 28485744160.

The previous prime is 28976877733. The next prime is 28976877767. The reversal of 28976877739 is 93777867982.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28976877739 - 2¹¹ = 28976875691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28976877733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245566702 + ... + 245566819.

It is an arithmetic number, because the mean of its divisors is an integer number (7367002830).

Almost surely, 2^28976877739 is an apocalyptic number.

28976877739 is a deficient number, since it is larger than the sum of its proper divisors (491133581).

28976877739 is an equidigital number, since it uses as much as digits as its factorization.

28976877739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491133580.

The product of its digits is 448084224, while the sum is 73.

The spelling of 28976877739 in words is "twenty-eight billion, nine hundred seventy-six million, eight hundred seventy-seven thousand, seven hundred thirty-nine".