6780471351816 has 16 divisors (see below), whose sum is σ = 16951178379600. Its totient is φ = 2260157117264.

The previous prime is 6780471351791. The next prime is 6780471351931. The reversal of 6780471351816 is 6181531740876.

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, 141259819806 + ... + 141259819853.

It is an arithmetic number, because the mean of its divisors is an integer number (1059448648725).

Almost surely, 2^{6780471351816} is an apocalyptic number.

It is an amenable number.

6780471351816 is an abundant number, since it is smaller than the sum of its proper divisors (10170707027784).

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

6780471351816 is a wasteful number, since it uses less digits than its factorization.

6780471351816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282519639668 (or 282519639664 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 57.

The spelling of 6780471351816 in words is "six trillion, seven hundred eighty billion, four hundred seventy-one million, three hundred fifty-one thousand, eight hundred sixteen".