27774018552 has 128 divisors (see below), whose sum is σ = 82915983360. Its totient is φ = 7580200320.

The previous prime is 27774018539. The next prime is 27774018557. The reversal of 27774018552 is 25581047772.

It is a super-2 number, since 2×27774018552² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27774018557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3129273 + ... + 3138135.

It is an arithmetic number, because the mean of its divisors is an integer number (647781120).

Almost surely, 2^27774018552 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 27774018552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41457991680).

27774018552 is an abundant number, since it is smaller than the sum of its proper divisors (55141964808).

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

27774018552 is a wasteful number, since it uses less digits than its factorization.

27774018552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9713 (or 9709 counting only the distinct ones).

The product of its (nonzero) digits is 1097600, while the sum is 48.

The spelling of 27774018552 in words is "twenty-seven billion, seven hundred seventy-four million, eighteen thousand, five hundred fifty-two".