27256487447 has 8 divisors (see below), whose sum is σ = 32982640416. Its totient is φ = 21988426752.

The previous prime is 27256487441. The next prime is 27256487459. The reversal of 27256487447 is 74478465272.

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

It is a cyclic number.

It is not a de Polignac number, because 27256487447 - 2²⁴ = 27239710231 is a prime.

It is a super-2 number, since 2×27256487447² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27256487392 and 27256487401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27256487441) 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, 114522938 + ... + 114523175.

It is an arithmetic number, because the mean of its divisors is an integer number (4122830052).

Almost surely, 2^27256487447 is an apocalyptic number.

27256487447 is a deficient number, since it is larger than the sum of its proper divisors (5726152969).

27256487447 is a wasteful number, since it uses less digits than its factorization.

27256487447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229046137.

The product of its digits is 21073920, while the sum is 56.

The spelling of 27256487447 in words is "twenty-seven billion, two hundred fifty-six million, four hundred eighty-seven thousand, four hundred forty-seven".