26827661663 has 8 divisors (see below), whose sum is σ = 29282975616. Its totient is φ = 24375087000.

The previous prime is 26827661659. The next prime is 26827661677. The reversal of 26827661663 is 36616672862.

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

It is not a de Polignac number, because 26827661663 - 2² = 26827661659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26827661683) 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, 664313 + ... + 703538.

It is an arithmetic number, because the mean of its divisors is an integer number (3660371952).

Almost surely, 2^26827661663 is an apocalyptic number.

26827661663 is a deficient number, since it is larger than the sum of its proper divisors (2455313953).

26827661663 is a wasteful number, since it uses less digits than its factorization.

26827661663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369645.

The product of its digits is 5225472, while the sum is 53.

The spelling of 26827661663 in words is "twenty-six billion, eight hundred twenty-seven million, six hundred sixty-one thousand, six hundred sixty-three".