27804726646 has 8 divisors (see below), whose sum is σ = 43052480064. Its totient is φ = 13453899960.

The previous prime is 27804726629. The next prime is 27804726647. The reversal of 27804726646 is 64662740872.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 27804726593 and 27804726602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27804726647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224231605 + ... + 224231728.

It is an arithmetic number, because the mean of its divisors is an integer number (5381560008).

Almost surely, 2^27804726646 is an apocalyptic number.

27804726646 is a deficient number, since it is larger than the sum of its proper divisors (15247753418).

27804726646 is a wasteful number, since it uses less digits than its factorization.

27804726646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448463366.

The product of its (nonzero) digits is 5419008, while the sum is 52.

The spelling of 27804726646 in words is "twenty-seven billion, eight hundred four million, seven hundred twenty-six thousand, six hundred forty-six".