28768806713877 has 24 divisors (see below), whose sum is σ = 40547687256000. Its totient is φ = 18140977028160.

The previous prime is 28768806713797. The next prime is 28768806713887. The reversal of 28768806713877 is 77831760886782.

It is not a de Polignac number, because 28768806713877 - 2¹⁸ = 28768806451733 is a prime.

It is a super-2 number, since 2×28768806713877² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28768806713887) 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 23 ways as a sum of consecutive naturals, for example, 20365752 + ... + 21732497.

It is an arithmetic number, because the mean of its divisors is an integer number (1689486969000).

Almost surely, 2^{28768806713877} is an apocalyptic number.

It is an amenable number.

28768806713877 is a deficient number, since it is larger than the sum of its proper divisors (11778880542123).

28768806713877 is a wasteful number, since it uses less digits than its factorization.

28768806713877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42098921 (or 42098902 counting only the distinct ones).

The product of its (nonzero) digits is 2124251136, while the sum is 78.

The spelling of 28768806713877 in words is "twenty-eight trillion, seven hundred sixty-eight billion, eight hundred six million, seven hundred thirteen thousand, eight hundred seventy-seven".