27831042813 has 64 divisors (see below), whose sum is σ = 45020067840. Its totient is φ = 14939188992.

The previous prime is 27831042803. The next prime is 27831042853. The reversal of 27831042813 is 31824013872.

It is not a de Polignac number, because 27831042813 - 2⁵ = 27831042781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27831042803) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 41109031 + ... + 41109707.

It is an arithmetic number, because the mean of its divisors is an integer number (703438560).

Almost surely, 2^27831042813 is an apocalyptic number.

It is an amenable number.

27831042813 is a deficient number, since it is larger than the sum of its proper divisors (17189025027).

27831042813 is a wasteful number, since it uses less digits than its factorization.

27831042813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426.

The product of its (nonzero) digits is 64512, while the sum is 39.

It can be divided in two parts, 278310 and 42813, that added together give a palindrome (321123).

The spelling of 27831042813 in words is "twenty-seven billion, eight hundred thirty-one million, forty-two thousand, eight hundred thirteen".