6813531842 has 16 divisors (see below), whose sum is σ = 11011254912. Its totient is φ = 3143341200.

The previous prime is 6813531787. The next prime is 6813531871. The reversal of 6813531842 is 2481353186.

It is a self number, because there is not a number n which added to its sum of digits gives 6813531842.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5393 + ... + 116859.

It is an arithmetic number, because the mean of its divisors is an integer number (688203432).

Almost surely, 2^6813531842 is an apocalyptic number.

6813531842 is a deficient number, since it is larger than the sum of its proper divisors (4197723070).

6813531842 is a wasteful number, since it uses less digits than its factorization.

6813531842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113833.

The product of its digits is 138240, while the sum is 41.

The square root of 6813531842 is about 82544.1205780278. The cubic root of 6813531842 is about 1895.7923362158.

It can be divided in two parts, 681353184 and 2, that added together give a palindrome (681353186).

The spelling of 6813531842 in words is "six billion, eight hundred thirteen million, five hundred thirty-one thousand, eight hundred forty-two".