27756038560 has 36 divisors (see below), whose sum is σ = 65578620114. Its totient is φ = 11101572480.

The previous prime is 27756038491. The next prime is 27756038561. The reversal of 27756038560 is 6583065772.

It can be written as a sum of positive squares in only one way, i.e., 24980434704 + 2775603856 = 158052^2 + 52684^2 .

It is not an unprimeable number, because it can be changed into a prime (27756038561) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2100775 + ... + 2113945.

Almost surely, 2^27756038560 is an apocalyptic number.

27756038560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27756038560 is an abundant number, since it is smaller than the sum of its proper divisors (37822581554).

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

27756038560 is an frugal number, since it uses more digits than its factorization.

27756038560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26357 (or 13178 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 49.

The spelling of 27756038560 in words is "twenty-seven billion, seven hundred fifty-six million, thirty-eight thousand, five hundred sixty".