27220313720 has 16 divisors (see below), whose sum is σ = 61245705960. Its totient is φ = 10888125472.

The previous prime is 27220313689. The next prime is 27220313737. The reversal of 27220313720 is 2731302272.

It is a happy number.

It is a congruent number.

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, 340253882 + ... + 340253961.

Almost surely, 2^27220313720 is an apocalyptic number.

27220313720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27220313720 is an abundant number, since it is smaller than the sum of its proper divisors (34025392240).

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

27220313720 is a wasteful number, since it uses less digits than its factorization.

27220313720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680507854 (or 680507850 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 29.

Adding to 27220313720 its reverse (2731302272), we get a palindrome (29951615992).

The spelling of 27220313720 in words is "twenty-seven billion, two hundred twenty million, three hundred thirteen thousand, seven hundred twenty".