28318376877 has 16 divisors (see below), whose sum is σ = 43154227200. Its totient is φ = 16181024112.

The previous prime is 28318376783. The next prime is 28318376881. The reversal of 28318376877 is 77867381382.

It is not a de Polignac number, because 28318376877 - 2¹² = 28318372781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28318376877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28318376077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 587124 + ... + 633522.

It is an arithmetic number, because the mean of its divisors is an integer number (2697139200).

Almost surely, 2^28318376877 is an apocalyptic number.

It is an amenable number.

28318376877 is a deficient number, since it is larger than the sum of its proper divisors (14835850323).

28318376877 is a wasteful number, since it uses less digits than its factorization.

28318376877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75472.

The product of its digits is 18966528, while the sum is 60.

The spelling of 28318376877 in words is "twenty-eight billion, three hundred eighteen million, three hundred seventy-six thousand, eight hundred seventy-seven".