27683913605 has 8 divisors (see below), whose sum is σ = 34030957464. Its totient is φ = 21606956800.

The previous prime is 27683913599. The next prime is 27683913611. The reversal of 27683913605 is 50631938672.

It is an interprime number because it is at equal distance from previous prime (27683913599) and next prime (27683913611).

It can be written as a sum of positive squares in 4 ways, for example, as 887205796 + 26796707809 = 29786^2 + 163697^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-27683913605 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67521536 + ... + 67521945.

It is an arithmetic number, because the mean of its divisors is an integer number (4253869683).

Almost surely, 2^27683913605 is an apocalyptic number.

It is an amenable number.

27683913605 is a deficient number, since it is larger than the sum of its proper divisors (6347043859).

27683913605 is a wasteful number, since it uses less digits than its factorization.

27683913605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135043527.

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 27683913605 in words is "twenty-seven billion, six hundred eighty-three million, nine hundred thirteen thousand, six hundred five".