27807340813 has 8 divisors (see below), whose sum is σ = 31781046528. Its totient is φ = 23833942224.

The previous prime is 27807340801. The next prime is 27807340817. The reversal of 27807340813 is 31804370872.

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

It is a cyclic number.

It is not a de Polignac number, because 27807340813 - 2²⁹ = 27270469901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27807340813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27807340817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170220 + ... + 290842.

It is an arithmetic number, because the mean of its divisors is an integer number (3972630816).

Almost surely, 2^27807340813 is an apocalyptic number.

It is an amenable number.

27807340813 is a deficient number, since it is larger than the sum of its proper divisors (3973705715).

27807340813 is a wasteful number, since it uses less digits than its factorization.

27807340813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153563.

The product of its (nonzero) digits is 225792, while the sum is 43.

The spelling of 27807340813 in words is "twenty-seven billion, eight hundred seven million, three hundred forty thousand, eight hundred thirteen".