27750623052 has 54 divisors (see below), whose sum is σ = 68365803324. Its totient is φ = 8759892240.

The previous prime is 27750623041. The next prime is 27750623053. The reversal of 27750623052 is 25032605772.

It is a self number, because there is not a number n which added to its sum of digits gives 27750623052.

It is not an unprimeable number, because it can be changed into a prime (27750623053) 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 17 ways as a sum of consecutive naturals, for example, 10963027 + ... + 10965557.

Almost surely, 2^27750623052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27750623052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34182901662).

27750623052 is an abundant number, since it is smaller than the sum of its proper divisors (40615180272).

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

27750623052 is an equidigital number, since it uses as much as digits as its factorization.

27750623052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5107 (or 2555 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 39.

The spelling of 27750623052 in words is "twenty-seven billion, seven hundred fifty million, six hundred twenty-three thousand, fifty-two".