28776063188438 has 32 divisors (see below), whose sum is σ = 46449011044800. Its totient is φ = 13336682275840.

The previous prime is 28776063188407. The next prime is 28776063188473. The reversal of 28776063188438 is 83488136067782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50919395 + ... + 51481422.

It is an arithmetic number, because the mean of its divisors is an integer number (1451531595150).

Almost surely, 2^{28776063188438} is an apocalyptic number.

28776063188438 is a deficient number, since it is larger than the sum of its proper divisors (17672947856362).

28776063188438 is a wasteful number, since it uses less digits than its factorization.

28776063188438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102401032.

The product of its (nonzero) digits is 520224768, while the sum is 71.

The spelling of 28776063188438 in words is "twenty-eight trillion, seven hundred seventy-six billion, sixty-three million, one hundred eighty-eight thousand, four hundred thirty-eight".