28777304902 has 8 divisors (see below), whose sum is σ = 43166737800. Its totient is φ = 14388392304.

The previous prime is 28777304851. The next prime is 28777304903. The reversal of 28777304902 is 20940377782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28777304903) 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 3 ways as a sum of consecutive naturals, for example, 69349 + ... + 249727.

It is an arithmetic number, because the mean of its divisors is an integer number (5395842225).

Almost surely, 2^28777304902 is an apocalyptic number.

28777304902 is a deficient number, since it is larger than the sum of its proper divisors (14389432898).

28777304902 is a wasteful number, since it uses less digits than its factorization.

28777304902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260150.

The product of its (nonzero) digits is 1185408, while the sum is 49.

The spelling of 28777304902 in words is "twenty-eight billion, seven hundred seventy-seven million, three hundred four thousand, nine hundred two".