6780051 has 16 divisors (see below), whose sum is σ = 10117120. Its totient is φ = 4487400.

The previous prime is 6780049. The next prime is 6780073. The reversal of 6780051 is 1500876.

It is not a de Polignac number, because 6780051 - 2¹ = 6780049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

6780051 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6779997 and 6780024.

It is not an unprimeable number, because it can be changed into a prime (6780031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3246 + ... + 4908.

It is an arithmetic number, because the mean of its divisors is an integer number (632320).

Almost surely, 2^6780051 is an apocalyptic number.

6780051 is a deficient number, since it is larger than the sum of its proper divisors (3337069).

6780051 is a wasteful number, since it uses less digits than its factorization.

6780051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823 (or 1817 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 6780051 is about 2603.8531064559. The cubic root of 6780051 is about 189.2682007360.

The spelling of 6780051 in words is "six million, seven hundred eighty thousand, fifty-one".