27726680446 has 32 divisors (see below), whose sum is σ = 43277718528. Its totient is φ = 13312766880.

The previous prime is 27726680407. The next prime is 27726680447. The reversal of 27726680446 is 64408662772.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 27726680393 and 27726680402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27726680447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2234716 + ... + 2247088.

It is an arithmetic number, because the mean of its divisors is an integer number (1352428704).

Almost surely, 2^27726680446 is an apocalyptic number.

27726680446 is a deficient number, since it is larger than the sum of its proper divisors (15551038082).

27726680446 is a wasteful number, since it uses less digits than its factorization.

27726680446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12856.

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

The spelling of 27726680446 in words is "twenty-seven billion, seven hundred twenty-six million, six hundred eighty thousand, four hundred forty-six".