27728762248 has 32 divisors (see below), whose sum is σ = 58036952160. Its totient is φ = 12310865280.

The previous prime is 27728762227. The next prime is 27728762249. The reversal of 27728762248 is 84226782772.

It is a super-2 number, since 2×27728762248² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27728762249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3660165 + ... + 3667732.

It is an arithmetic number, because the mean of its divisors is an integer number (1813654755).

Almost surely, 2^27728762248 is an apocalyptic number.

It is an amenable number.

27728762248 is an abundant number, since it is smaller than the sum of its proper divisors (30308189912).

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

27728762248 is a wasteful number, since it uses less digits than its factorization.

27728762248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7327957 (or 7327953 counting only the distinct ones).

The product of its digits is 8429568, while the sum is 55.

The spelling of 27728762248 in words is "twenty-seven billion, seven hundred twenty-eight million, seven hundred sixty-two thousand, two hundred forty-eight".