27240806620 has 12 divisors (see below), whose sum is σ = 57205693944. Its totient is φ = 10896322640.

The previous prime is 27240806617. The next prime is 27240806687. The reversal of 27240806620 is 2660804272.

It is a self number, because there is not a number n which added to its sum of digits gives 27240806620.

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, 681020146 + ... + 681020185.

It is an arithmetic number, because the mean of its divisors is an integer number (4767141162).

Almost surely, 2^27240806620 is an apocalyptic number.

27240806620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27240806620 is an abundant number, since it is smaller than the sum of its proper divisors (29964887324).

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

27240806620 is a wasteful number, since it uses less digits than its factorization.

27240806620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362040340 (or 1362040338 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 27240806620 in words is "twenty-seven billion, two hundred forty million, eight hundred six thousand, six hundred twenty".