27912270468820 has 72 divisors (see below), whose sum is σ = 62764312816800. Its totient is φ = 10398004991424.

The previous prime is 27912270468721. The next prime is 27912270468833. The reversal of 27912270468820 is 2886407221972.

It is a happy number.

It is a super-2 number, since 2×27912270468820² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9227830 + ... + 11873389.

It is an arithmetic number, because the mean of its divisors is an integer number (871726566900).

Almost surely, 2^{27912270468820} is an apocalyptic number.

27912270468820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27912270468820 is an abundant number, since it is smaller than the sum of its proper divisors (34852042347980).

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

27912270468820 is a wasteful number, since it uses less digits than its factorization.

27912270468820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21101365 (or 21101304 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 58.

The spelling of 27912270468820 in words is "twenty-seven trillion, nine hundred twelve billion, two hundred seventy million, four hundred sixty-eight thousand, eight hundred twenty".