27806580812 has 12 divisors (see below), whose sum is σ = 49133959056. Its totient is φ = 13768306800.

The previous prime is 27806580803. The next prime is 27806580821. The reversal of 27806580812 is 21808560872.

It is an interprime number because it is at equal distance from previous prime (27806580803) and next prime (27806580821).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33745439 + ... + 33746262.

It is an arithmetic number, because the mean of its divisors is an integer number (4094496588).

Almost surely, 2^27806580812 is an apocalyptic number.

It is an amenable number.

27806580812 is a deficient number, since it is larger than the sum of its proper divisors (21327378244).

27806580812 is a wasteful number, since it uses less digits than its factorization.

27806580812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67491808 (or 67491806 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 47.

The spelling of 27806580812 in words is "twenty-seven billion, eight hundred six million, five hundred eighty thousand, eight hundred twelve".