27838831305 has 16 divisors (see below), whose sum is σ = 44547972480. Its totient is φ = 14845429248.

The previous prime is 27838831303. The next prime is 27838831337. The reversal of 27838831305 is 50313883872.

It is not a de Polignac number, because 27838831305 - 2¹ = 27838831303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27838831301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409 + ... + 235961.

It is an arithmetic number, because the mean of its divisors is an integer number (2784248280).

Almost surely, 2^27838831305 is an apocalyptic number.

It is an amenable number.

27838831305 is a deficient number, since it is larger than the sum of its proper divisors (16709141175).

27838831305 is a wasteful number, since it uses less digits than its factorization.

27838831305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243440.

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 27838831305 in words is "twenty-seven billion, eight hundred thirty-eight million, eight hundred thirty-one thousand, three hundred five".