28776603475413 has 10 divisors (see below), whose sum is σ = 42987271858454. Its totient is φ = 19184402316888.

The previous prime is 28776603475267. The next prime is 28776603475441. The reversal of 28776603475413 is 31457430667782.

28776603475413 is a `hidden beast` number, since 2 + 8 + 7 + 7 + 6 + 603 + 4 + 7 + 5 + 4 + 13 = 666.

It can be written as a sum of positive squares in only one way, i.e., 24754585258404 + 4022018217009 = 4975398^2 + 2005497^2 .

It is not a de Polignac number, because 28776603475413 - 2²⁵ = 28776569920981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28776603495413) 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 9 ways as a sum of consecutive naturals, for example, 177633354706 + ... + 177633354867.

Almost surely, 2^{28776603475413} is an apocalyptic number.

It is an amenable number.

28776603475413 is a deficient number, since it is larger than the sum of its proper divisors (14210668383041).

28776603475413 is an equidigital number, since it uses as much as digits as its factorization.

28776603475413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355266709585 (or 355266709576 counting only the distinct ones).

The product of its (nonzero) digits is 142248960, while the sum is 63.

The spelling of 28776603475413 in words is "twenty-eight trillion, seven hundred seventy-six billion, six hundred three million, four hundred seventy-five thousand, four hundred thirteen".