6801531211 has 16 divisors (see below), whose sum is σ = 7127870400. Its totient is φ = 6481581568.

The previous prime is 6801531169. The next prime is 6801531229. The reversal of 6801531211 is 1121351086.

It is a cyclic number.

It is not a de Polignac number, because 6801531211 - 2¹⁷ = 6801400139 is a prime.

It is a super-3 number, since 3×6801531211³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6801531211.

It is not an unprimeable number, because it can be changed into a prime (6801531271) 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, 1667871 + ... + 1671943.

It is an arithmetic number, because the mean of its divisors is an integer number (445491900).

Almost surely, 2^6801531211 is an apocalyptic number.

6801531211 is a deficient number, since it is larger than the sum of its proper divisors (326339189).

6801531211 is a wasteful number, since it uses less digits than its factorization.

6801531211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4838.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 6801531211 is about 82471.3963201788. The cubic root of 6801531211 is about 1894.6786664000.

Adding to 6801531211 its reverse (1121351086), we get a palindrome (7922882297).

The spelling of 6801531211 in words is "six billion, eight hundred one million, five hundred thirty-one thousand, two hundred eleven".