27240077240 has 16 divisors (see below), whose sum is σ = 61290173880. Its totient is φ = 10896030880.

The previous prime is 27240077237. The next prime is 27240077257. The reversal of 27240077240 is 4277004272.

It is a self number, because there is not a number n which added to its sum of digits gives 27240077240.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340500926 + ... + 340501005.

Almost surely, 2^27240077240 is an apocalyptic number.

27240077240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27240077240 is an abundant number, since it is smaller than the sum of its proper divisors (34050096640).

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

27240077240 is a wasteful number, since it uses less digits than its factorization.

27240077240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681001942 (or 681001938 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 35.

The spelling of 27240077240 in words is "twenty-seven billion, two hundred forty million, seventy-seven thousand, two hundred forty".