27380913845 has 64 divisors (see below), whose sum is σ = 35712368640. Its totient is φ = 20103080448.

The previous prime is 27380913839. The next prime is 27380913853. The reversal of 27380913845 is 54831908372.

It is not a de Polignac number, because 27380913845 - 2⁴ = 27380913829 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 27380913793 and 27380913802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 76269776 + ... + 76270134.

It is an arithmetic number, because the mean of its divisors is an integer number (558005760).

Almost surely, 2^27380913845 is an apocalyptic number.

It is an amenable number.

27380913845 is a deficient number, since it is larger than the sum of its proper divisors (8331454795).

27380913845 is a wasteful number, since it uses less digits than its factorization.

27380913845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 27380913845 in words is "twenty-seven billion, three hundred eighty million, nine hundred thirteen thousand, eight hundred forty-five".