6812840249 has 8 divisors (see below), whose sum is σ = 6833386560. Its totient is φ = 6792325200.

The previous prime is 6812840233. The next prime is 6812840297. The reversal of 6812840249 is 9420482186.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6812840249 - 2⁴ = 6812840233 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6812843249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471959 + ... + 486179.

It is an arithmetic number, because the mean of its divisors is an integer number (854173320).

Almost surely, 2^6812840249 is an apocalyptic number.

It is an amenable number.

6812840249 is a deficient number, since it is larger than the sum of its proper divisors (20546311).

6812840249 is a wasteful number, since it uses less digits than its factorization.

6812840249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15631.

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 6812840249 is about 82539.9312393704. The cubic root of 6812840249 is about 1895.7281912612.

The spelling of 6812840249 in words is "six billion, eight hundred twelve million, eight hundred forty thousand, two hundred forty-nine".