28782227270 has 8 divisors (see below), whose sum is σ = 51808009104. Its totient is φ = 11512890904.

The previous prime is 28782227267. The next prime is 28782227291. The reversal of 28782227270 is 7272228782.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1439111354 + ... + 1439111373.

It is an arithmetic number, because the mean of its divisors is an integer number (6476001138).

Almost surely, 2^28782227270 is an apocalyptic number.

28782227270 is a deficient number, since it is larger than the sum of its proper divisors (23025781834).

28782227270 is a wasteful number, since it uses less digits than its factorization.

28782227270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2878222734.

The product of its (nonzero) digits is 702464, while the sum is 47.

The spelling of 28782227270 in words is "twenty-eight billion, seven hundred eighty-two million, two hundred twenty-seven thousand, two hundred seventy".