6808043540 has 24 divisors (see below), whose sum is σ = 14310801792. Its totient is φ = 2720567840.

The previous prime is 6808043521. The next prime is 6808043573. The reversal of 6808043540 is 453408086.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 6808043494 and 6808043503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144464 + ... + 185703.

It is an arithmetic number, because the mean of its divisors is an integer number (596283408).

Almost surely, 2^6808043540 is an apocalyptic number.

It is an amenable number.

6808043540 is an abundant number, since it is smaller than the sum of its proper divisors (7502758252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6808043540 is a wasteful number, since it uses less digits than its factorization.

6808043540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331207 (or 331205 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 6808043540 is about 82510.8692233938. The cubic root of 6808043540 is about 1895.2831790454.

The spelling of 6808043540 in words is "six billion, eight hundred eight million, forty-three thousand, five hundred forty".