7126123605 has 32 divisors (see below), whose sum is σ = 11821621248. Its totient is φ = 3661742400.

The previous prime is 7126123577. The next prime is 7126123619. The reversal of 7126123605 is 5063216217.

7126123605 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7126123605 - 2⁵ = 7126123573 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71800 + ... + 139310.

It is an arithmetic number, because the mean of its divisors is an integer number (369425664).

Almost surely, 2^7126123605 is an apocalyptic number.

It is an amenable number.

7126123605 is a deficient number, since it is larger than the sum of its proper divisors (4695497643).

7126123605 is a wasteful number, since it uses less digits than its factorization.

7126123605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67777.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 7126123605 is about 84416.3704799016. The cubic root of 7126123605 is about 1924.3517110846.

The spelling of 7126123605 in words is "seven billion, one hundred twenty-six million, one hundred twenty-three thousand, six hundred five".