27728633122 has 32 divisors (see below), whose sum is σ = 44575472880. Its totient is φ = 12890572800.

The previous prime is 27728633113. The next prime is 27728633131. The reversal of 27728633122 is 22133682772.

It is an interprime number because it is at equal distance from previous prime (27728633113) and next prime (27728633131).

It can be written as a sum of positive squares in 8 ways, for example, as 25274322441 + 2454310681 = 158979^2 + 49541^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1560504 + ... + 1578172.

Almost surely, 2^27728633122 is an apocalyptic number.

27728633122 is a deficient number, since it is larger than the sum of its proper divisors (16846839758).

27728633122 is a wasteful number, since it uses less digits than its factorization.

27728633122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18246.

The product of its digits is 338688, while the sum is 43.

The spelling of 27728633122 in words is "twenty-seven billion, seven hundred twenty-eight million, six hundred thirty-three thousand, one hundred twenty-two".