27057840523 has 12 divisors (see below), whose sum is σ = 31511143560. Its totient is φ = 23166132192.

The previous prime is 27057840517. The next prime is 27057840533. The reversal of 27057840523 is 32504875072.

It is not a de Polignac number, because 27057840523 - 2²¹ = 27055743371 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27057840523.

It is not an unprimeable number, because it can be changed into a prime (27057840533) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 269418 + ... + 355951.

It is an arithmetic number, because the mean of its divisors is an integer number (2625928630).

Almost surely, 2^27057840523 is an apocalyptic number.

27057840523 is a deficient number, since it is larger than the sum of its proper divisors (4453303037).

27057840523 is an equidigital number, since it uses as much as digits as its factorization.

27057840523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626266 (or 626259 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 43.

The spelling of 27057840523 in words is "twenty-seven billion, fifty-seven million, eight hundred forty thousand, five hundred twenty-three".