28776133413 has 8 divisors (see below), whose sum is σ = 42631308800. Its totient is φ = 19184088924.

The previous prime is 28776133391. The next prime is 28776133417. The reversal of 28776133413 is 31433167782.

28776133413 is a `hidden beast` number, since 28 + 7 + 7 + 613 + 3 + 4 + 1 + 3 = 666.

It is not a de Polignac number, because 28776133413 - 2⁵ = 28776133381 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 (28776133417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 532891333 + ... + 532891386.

It is an arithmetic number, because the mean of its divisors is an integer number (5328913600).

Almost surely, 2^28776133413 is an apocalyptic number.

It is an amenable number.

28776133413 is a deficient number, since it is larger than the sum of its proper divisors (13855175387).

28776133413 is a wasteful number, since it uses less digits than its factorization.

28776133413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065782728 (or 1065782722 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The spelling of 28776133413 in words is "twenty-eight billion, seven hundred seventy-six million, one hundred thirty-three thousand, four hundred thirteen".