3128623088405 has 32 divisors (see below), whose sum is σ = 3860123873760. Its totient is φ = 2432840417280.

The previous prime is 3128623088363. The next prime is 3128623088413. The reversal of 3128623088405 is 5048803268213.

3128623088405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 16 ways, for example, as 1228322240209 + 1900300848196 = 1108297^2 + 1378514^2 .

It is not a de Polignac number, because 3128623088405 - 2⁶ = 3128623088341 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131062811 + ... + 131086679.

It is an arithmetic number, because the mean of its divisors is an integer number (120628871055).

Almost surely, 2^{3128623088405} is an apocalyptic number.

It is an amenable number.

3128623088405 is a deficient number, since it is larger than the sum of its proper divisors (731500785355).

3128623088405 is a wasteful number, since it uses less digits than its factorization.

3128623088405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26249.

The product of its (nonzero) digits is 2211840, while the sum is 50.

The spelling of 3128623088405 in words is "three trillion, one hundred twenty-eight billion, six hundred twenty-three million, eighty-eight thousand, four hundred five".