27712702428 has 12 divisors (see below), whose sum is σ = 64662972360. Its totient is φ = 9237567472.

The previous prime is 27712702403. The next prime is 27712702429. The reversal of 27712702428 is 82420721772.

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

It is a self number, because there is not a number n which added to its sum of digits gives 27712702428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27712702429) 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, 1154695923 + ... + 1154695946.

It is an arithmetic number, because the mean of its divisors is an integer number (5388581030).

Almost surely, 2^27712702428 is an apocalyptic number.

It is an amenable number.

27712702428 is an abundant number, since it is smaller than the sum of its proper divisors (36950269932).

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

27712702428 is a wasteful number, since it uses less digits than its factorization.

27712702428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2309391876 (or 2309391874 counting only the distinct ones).

The product of its (nonzero) digits is 175616, while the sum is 42.

The spelling of 27712702428 in words is "twenty-seven billion, seven hundred twelve million, seven hundred two thousand, four hundred twenty-eight".