6780061380 has 288 divisors, whose sum is σ = 21228681600. Its totient is φ = 1614348288.

The previous prime is 6780061373. The next prime is 6780061451. The reversal of 6780061380 is 831600876.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 48777351 + ... + 48777489.

It is an arithmetic number, because the mean of its divisors is an integer number (73710700).

Almost surely, 2^6780061380 is an apocalyptic number.

6780061380 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6780061380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10614340800).

6780061380 is an abundant number, since it is smaller than the sum of its proper divisors (14448620220).

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

6780061380 is a wasteful number, since it uses less digits than its factorization.

6780061380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 6780061380 is about 82341.1281195491. The cubic root of 6780061380 is about 1892.6829732341.

The spelling of 6780061380 in words is "six billion, seven hundred eighty million, sixty-one thousand, three hundred eighty".