27243001228 has 48 divisors (see below), whose sum is σ = 51751332864. Its totient is φ = 12499370240.

The previous prime is 27243001217. The next prime is 27243001229. The reversal of 27243001228 is 82210034272.

It is a super-2 number, since 2×27243001228² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27243001228.

It is not an unprimeable number, because it can be changed into a prime (27243001229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 824343 + ... + 856753.

It is an arithmetic number, because the mean of its divisors is an integer number (1078152768).

Almost surely, 2^27243001228 is an apocalyptic number.

It is an amenable number.

27243001228 is a deficient number, since it is larger than the sum of its proper divisors (24508331636).

27243001228 is a wasteful number, since it uses less digits than its factorization.

27243001228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32742 (or 32740 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The spelling of 27243001228 in words is "twenty-seven billion, two hundred forty-three million, one thousand, two hundred twenty-eight".