28777204430 has 32 divisors (see below), whose sum is σ = 55813665600. Its totient is φ = 10619684352.

The previous prime is 28777204411. The next prime is 28777204453. The reversal of 28777204430 is 3440277782.

28777204430 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 185366 + ... + 303174.

It is an arithmetic number, because the mean of its divisors is an integer number (1744177050).

Almost surely, 2^28777204430 is an apocalyptic number.

28777204430 is a deficient number, since it is larger than the sum of its proper divisors (27036461170).

28777204430 is a wasteful number, since it uses less digits than its factorization.

28777204430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119708.

The product of its (nonzero) digits is 526848, while the sum is 44.

The spelling of 28777204430 in words is "twenty-eight billion, seven hundred seventy-seven million, two hundred four thousand, four hundred thirty".