27726718481 has 8 divisors (see below), whose sum is σ = 34568376384. Its totient is φ = 21605235120.

The previous prime is 27726718457. The next prime is 27726718483. The reversal of 27726718481 is 18481762772.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27726718481 - 2²⁶ = 27659609617 is a prime.

It is a super-3 number, since 3×27726718481³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27726718483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180043550 + ... + 180043703.

It is an arithmetic number, because the mean of its divisors is an integer number (4321047048).

Almost surely, 2^27726718481 is an apocalyptic number.

It is an amenable number.

27726718481 is a deficient number, since it is larger than the sum of its proper divisors (6841657903).

27726718481 is a wasteful number, since it uses less digits than its factorization.

27726718481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360087271.

The product of its digits is 2107392, while the sum is 53.

The spelling of 27726718481 in words is "twenty-seven billion, seven hundred twenty-six million, seven hundred eighteen thousand, four hundred eighty-one".