9428139093505 has 24 divisors (see below), whose sum is σ = 13167310655016. Its totient is φ = 6453485575680.

The previous prime is 9428139093449. The next prime is 9428139093523. The reversal of 9428139093505 is 5053909318249.

It can be written as a sum of positive squares in 4 ways, for example, as 4849878635536 + 4578260457969 = 2202244^2 + 2139687^2 .

It is not a de Polignac number, because 9428139093505 - 2¹⁷ = 9428138962433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9428139093505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 458333862 + ... + 458354431.

It is an arithmetic number, because the mean of its divisors is an integer number (548637943959).

Almost surely, 2^{9428139093505} is an apocalyptic number.

It is an amenable number.

9428139093505 is a deficient number, since it is larger than the sum of its proper divisors (3739171561511).

9428139093505 is a wasteful number, since it uses less digits than its factorization.

9428139093505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916688337 (or 916688326 counting only the distinct ones).

The product of its (nonzero) digits is 10497600, while the sum is 58.

The spelling of 9428139093505 in words is "nine trillion, four hundred twenty-eight billion, one hundred thirty-nine million, ninety-three thousand, five hundred five".