27026897217 has 32 divisors (see below), whose sum is σ = 37789286400. Its totient is φ = 17158709568.

The previous prime is 27026897213. The next prime is 27026897231. The reversal of 27026897217 is 71279862072.

It is not a de Polignac number, because 27026897217 - 2² = 27026897213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27026897217.

It is not an unprimeable number, because it can be changed into a prime (27026897213) 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, 11043688 + ... + 11046134.

It is an arithmetic number, because the mean of its divisors is an integer number (1180915200).

Almost surely, 2^27026897217 is an apocalyptic number.

It is an amenable number.

27026897217 is a deficient number, since it is larger than the sum of its proper divisors (10762389183).

27026897217 is a wasteful number, since it uses less digits than its factorization.

27026897217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4165.

The product of its (nonzero) digits is 1185408, while the sum is 51.

The spelling of 27026897217 in words is "twenty-seven billion, twenty-six million, eight hundred ninety-seven thousand, two hundred seventeen".