27722855980 has 12 divisors (see below), whose sum is σ = 58217997600. Its totient is φ = 11089142384.

The previous prime is 27722855969. The next prime is 27722855999. The reversal of 27722855980 is 8955822772.

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 3 ways as a sum of consecutive naturals, for example, 693071380 + ... + 693071419.

It is an arithmetic number, because the mean of its divisors is an integer number (4851499800).

Almost surely, 2^27722855980 is an apocalyptic number.

27722855980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27722855980 is an abundant number, since it is smaller than the sum of its proper divisors (30495141620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27722855980 is a wasteful number, since it uses less digits than its factorization.

27722855980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386142808 (or 1386142806 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 55.

The spelling of 27722855980 in words is "twenty-seven billion, seven hundred twenty-two million, eight hundred fifty-five thousand, nine hundred eighty".