6854784731 has 4 divisors (see below), whose sum is σ = 6907111464. Its totient is φ = 6802458000.

The previous prime is 6854784721. The next prime is 6854784743. The reversal of 6854784731 is 1374874586.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6854784731 is a prime.

It is a super-2 number, since 2×6854784731² = 93976147416701484722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6854784721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26163170 + ... + 26163431.

It is an arithmetic number, because the mean of its divisors is an integer number (1726777866).

Almost surely, 2^6854784731 is an apocalyptic number.

6854784731 is a deficient number, since it is larger than the sum of its proper divisors (52326733).

6854784731 is a wasteful number, since it uses less digits than its factorization.

6854784731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52326732.

The product of its digits is 4515840, while the sum is 53.

The square root of 6854784731 is about 82793.6273574241. The cubic root of 6854784731 is about 1899.6106987251.

The spelling of 6854784731 in words is "six billion, eight hundred fifty-four million, seven hundred eighty-four thousand, seven hundred thirty-one".