27704257212 has 12 divisors (see below), whose sum is σ = 64643266856. Its totient is φ = 9234752400.

The previous prime is 27704257187. The next prime is 27704257237. The reversal of 27704257212 is 21275240772.

It is an interprime number because it is at equal distance from previous prime (27704257187) and next prime (27704257237).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 1154344039 + ... + 1154344062.

Almost surely, 2^27704257212 is an apocalyptic number.

It is an amenable number.

27704257212 is an abundant number, since it is smaller than the sum of its proper divisors (36939009644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27704257212 is a wasteful number, since it uses less digits than its factorization.

27704257212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308688108 (or 2308688106 counting only the distinct ones).

The product of its (nonzero) digits is 109760, while the sum is 39.

Adding to 27704257212 its reverse (21275240772), we get a palindrome (48979497984).

The spelling of 27704257212 in words is "twenty-seven billion, seven hundred four million, two hundred fifty-seven thousand, two hundred twelve".