27640541607412 has 6 divisors (see below), whose sum is σ = 48370947812978. Its totient is φ = 13820270803704.

The previous prime is 27640541607403. The next prime is 27640541607439. The reversal of 27640541607412 is 21470614504672.

It can be written as a sum of positive squares in only one way, i.e., 26977365912676 + 663175694736 = 5193974^2 + 814356^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3455067700923 + ... + 3455067700930.

Almost surely, 2^{27640541607412} is an apocalyptic number.

It is an amenable number.

27640541607412 is a deficient number, since it is larger than the sum of its proper divisors (20730406205566).

27640541607412 is a wasteful number, since it uses less digits than its factorization.

27640541607412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6910135401857 (or 6910135401855 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 49.

The spelling of 27640541607412 in words is "twenty-seven trillion, six hundred forty billion, five hundred forty-one million, six hundred seven thousand, four hundred twelve".