6781875780 has 48 divisors (see below), whose sum is σ = 19502481600. Its totient is φ = 1759621248.

The previous prime is 6781875761. The next prime is 6781875781. The reversal of 6781875780 is 875781876.

It is a self number, because there is not a number n which added to its sum of digits gives 6781875780.

It is not an unprimeable number, because it can be changed into a prime (6781875781) 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, 1525230 + ... + 1529669.

It is an arithmetic number, because the mean of its divisors is an integer number (406301700).

Almost surely, 2^6781875780 is an apocalyptic number.

6781875780 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6781875780 is an abundant number, since it is smaller than the sum of its proper divisors (12720605820).

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

6781875780 is a wasteful number, since it uses less digits than its factorization.

6781875780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3054948 (or 3054946 counting only the distinct ones).

The product of its (nonzero) digits is 5268480, while the sum is 57.

The square root of 6781875780 is about 82352.1449629577. The cubic root of 6781875780 is about 1892.8517906686.

The spelling of 6781875780 in words is "six billion, seven hundred eighty-one million, eight hundred seventy-five thousand, seven hundred eighty".