6780533720 has 32 divisors (see below), whose sum is σ = 15261274800. Its totient is φ = 2711311488.

The previous prime is 6780533719. The next prime is 6780533729. The reversal of 6780533720 is 273350876.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6780533729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100886 + ... + 154074.

Almost surely, 2^6780533720 is an apocalyptic number.

It is an amenable number.

6780533720 is an abundant number, since it is smaller than the sum of its proper divisors (8480741080).

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

6780533720 is a wasteful number, since it uses less digits than its factorization.

6780533720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56387 (or 56383 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 41.

The square root of 6780533720 is about 82343.9962595938. The cubic root of 6780533720 is about 1892.7269241202.

The spelling of 6780533720 in words is "six billion, seven hundred eighty million, five hundred thirty-three thousand, seven hundred twenty".