6780235687220 has 12 divisors (see below), whose sum is σ = 14238494943204. Its totient is φ = 2712094274880.

The previous prime is 6780235687213. The next prime is 6780235687339. The reversal of 6780235687220 is 227865320876.

It can be written as a sum of positive squares in 2 ways, for example, as 1191616758544 + 5588618928676 = 1091612^2 + 2364026^2 .

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, 169505892161 + ... + 169505892200.

It is an arithmetic number, because the mean of its divisors is an integer number (1186541245267).

Almost surely, 2^{6780235687220} is an apocalyptic number.

It is an amenable number.

6780235687220 is an abundant number, since it is smaller than the sum of its proper divisors (7458259255984).

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

6780235687220 is a wasteful number, since it uses less digits than its factorization.

6780235687220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339011784370 (or 339011784368 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 56.

The spelling of 6780235687220 in words is "six trillion, seven hundred eighty billion, two hundred thirty-five million, six hundred eighty-seven thousand, two hundred twenty".