27694340461 has 8 divisors (see below), whose sum is σ = 27910159640. Its totient is φ = 27479020608.

The previous prime is 27694340437. The next prime is 27694340483. The reversal of 27694340461 is 16404349672.

It can be written as a sum of positive squares in 4 ways, for example, as 2980614025 + 24713726436 = 54595^2 + 157206^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27694340461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27694340431) 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 7 ways as a sum of consecutive naturals, for example, 13086 + ... + 235711.

It is an arithmetic number, because the mean of its divisors is an integer number (3488769955).

Almost surely, 2^27694340461 is an apocalyptic number.

It is an amenable number.

27694340461 is a deficient number, since it is larger than the sum of its proper divisors (215819179).

27694340461 is a wasteful number, since it uses less digits than its factorization.

27694340461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249663.

The product of its (nonzero) digits is 870912, while the sum is 46.

The spelling of 27694340461 in words is "twenty-seven billion, six hundred ninety-four million, three hundred forty thousand, four hundred sixty-one".