27728745033 has 32 divisors (see below), whose sum is σ = 42746106240. Its totient is φ = 15801615360.

The previous prime is 27728745029. The next prime is 27728745041. The reversal of 27728745033 is 33054782772.

It is not a de Polignac number, because 27728745033 - 2² = 27728745029 is a prime.

It is a super-2 number, since 2×27728745033² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27728745013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 576591 + ... + 622827.

It is an arithmetic number, because the mean of its divisors is an integer number (1335815820).

Almost surely, 2^27728745033 is an apocalyptic number.

It is an amenable number.

27728745033 is a deficient number, since it is larger than the sum of its proper divisors (15017361207).

27728745033 is a wasteful number, since it uses less digits than its factorization.

27728745033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47337.

The product of its (nonzero) digits is 1975680, while the sum is 48.

The spelling of 27728745033 in words is "twenty-seven billion, seven hundred twenty-eight million, seven hundred forty-five thousand, thirty-three".