27726870017 has 16 divisors (see below), whose sum is σ = 34624651392. Its totient is φ = 21570299520.

The previous prime is 27726869999. The next prime is 27726870131. The reversal of 27726870017 is 71007862772.

It is not a de Polignac number, because 27726870017 - 2⁶ = 27726869953 is a prime.

It is a super-2 number, since 2×27726870017² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27726870917) 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, 244298 + ... + 339315.

It is an arithmetic number, because the mean of its divisors is an integer number (2164040712).

Almost surely, 2^27726870017 is an apocalyptic number.

It is an amenable number.

27726870017 is a deficient number, since it is larger than the sum of its proper divisors (6897781375).

27726870017 is a wasteful number, since it uses less digits than its factorization.

27726870017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584248.

The product of its (nonzero) digits is 460992, while the sum is 47.

The spelling of 27726870017 in words is "twenty-seven billion, seven hundred twenty-six million, eight hundred seventy thousand, seventeen".