6785405451 has 48 divisors (see below), whose sum is σ = 11120608800. Its totient is φ = 4085864640.

The previous prime is 6785405443. The next prime is 6785405477. The reversal of 6785405451 is 1545045876.

6785405451 is a `hidden beast` number, since 6 + 7 + 8 + 540 + 54 + 51 = 666.

It is not a de Polignac number, because 6785405451 - 2³ = 6785405443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6785405397 and 6785405406.

It is not an unprimeable number, because it can be changed into a prime (6785405491) 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 47 ways as a sum of consecutive naturals, for example, 506305 + ... + 519533.

It is an arithmetic number, because the mean of its divisors is an integer number (231679350).

Almost surely, 2^6785405451 is an apocalyptic number.

6785405451 is a deficient number, since it is larger than the sum of its proper divisors (4335203349).

6785405451 is a wasteful number, since it uses less digits than its factorization.

6785405451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13417 (or 13400 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The square root of 6785405451 is about 82373.5725278441. The cubic root of 6785405451 is about 1893.1801160239.

The spelling of 6785405451 in words is "six billion, seven hundred eighty-five million, four hundred five thousand, four hundred fifty-one".