6851919759940 has 48 divisors (see below), whose sum is σ = 15015005873280. Its totient is φ = 2621540472320.

The previous prime is 6851919759907. The next prime is 6851919759941. The reversal of 6851919759940 is 499579191586.

It is not an unprimeable number, because it can be changed into a prime (6851919759941) 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, 21665871 + ... + 21979849.

It is an arithmetic number, because the mean of its divisors is an integer number (312812622360).

Almost surely, 2^{6851919759940} is an apocalyptic number.

It is an amenable number.

6851919759940 is an abundant number, since it is smaller than the sum of its proper divisors (8163086113340).

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

6851919759940 is a wasteful number, since it uses less digits than its factorization.

6851919759940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361452 (or 361450 counting only the distinct ones).

The product of its (nonzero) digits is 220449600, while the sum is 73.

The spelling of 6851919759940 in words is "six trillion, eight hundred fifty-one billion, nine hundred nineteen million, seven hundred fifty-nine thousand, nine hundred forty".