6405253126 has 16 divisors (see below), whose sum is σ = 9844446528. Its totient is φ = 3123806400.

The previous prime is 6405253121. The next prime is 6405253133. The reversal of 6405253126 is 6213525046.

It is a junction number, because it is equal to n+sod(n) for n = 6405253091 and 6405253100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6405253121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 699091 + ... + 708193.

It is an arithmetic number, because the mean of its divisors is an integer number (615277908).

Almost surely, 2^6405253126 is an apocalyptic number.

6405253126 is a deficient number, since it is larger than the sum of its proper divisors (3439193402).

6405253126 is a wasteful number, since it uses less digits than its factorization.

6405253126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17727.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 6405253126 is about 80032.8253031217. The cubic root of 6405253126 is about 1857.1433705882.

The spelling of 6405253126 in words is "six billion, four hundred five million, two hundred fifty-three thousand, one hundred twenty-six".