6813085490840 has 16 divisors (see below), whose sum is σ = 15329442354480. Its totient is φ = 2725234196320.

The previous prime is 6813085490803. The next prime is 6813085490851. The reversal of 6813085490840 is 480945803186.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85163568596 + ... + 85163568675.

It is an arithmetic number, because the mean of its divisors is an integer number (958090147155).

Almost surely, 2^{6813085490840} is an apocalyptic number.

It is an amenable number.

6813085490840 is an abundant number, since it is smaller than the sum of its proper divisors (8516356863640).

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

6813085490840 is a wasteful number, since it uses less digits than its factorization.

6813085490840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170327137282 (or 170327137278 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 56.

The spelling of 6813085490840 in words is "six trillion, eight hundred thirteen billion, eighty-five million, four hundred ninety thousand, eight hundred forty".