28560912278 has 8 divisors (see below), whose sum is σ = 42843998568. Its totient is φ = 14279579424.

The previous prime is 28560912277. The next prime is 28560912283. The reversal of 28560912278 is 87221906582.

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

It is a super-2 number, since 2×28560912278² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28560912277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396851 + ... + 463262.

It is an arithmetic number, because the mean of its divisors is an integer number (5355499821).

Almost surely, 2^28560912278 is an apocalyptic number.

28560912278 is a deficient number, since it is larger than the sum of its proper divisors (14283086290).

28560912278 is a wasteful number, since it uses less digits than its factorization.

28560912278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876718.

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 28560912278 in words is "twenty-eight billion, five hundred sixty million, nine hundred twelve thousand, two hundred seventy-eight".