10018715405 has 16 divisors (see below), whose sum is σ = 12440574000. Its totient is φ = 7736386560.

The previous prime is 10018715401. The next prime is 10018715453. The reversal of 10018715405 is 50451781001.

10018715405 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 8 ways, for example, as 14915044 + 10003800361 = 3862^2 + 100019^2 .

It is not a de Polignac number, because 10018715405 - 2² = 10018715401 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10018715401) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 653771 + ... + 668919.

It is an arithmetic number, because the mean of its divisors is an integer number (777535875).

Almost surely, 2^10018715405 is an apocalyptic number.

It is an amenable number.

10018715405 is a deficient number, since it is larger than the sum of its proper divisors (2421858595).

10018715405 is a wasteful number, since it uses less digits than its factorization.

10018715405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19744.

The product of its (nonzero) digits is 5600, while the sum is 32.

The spelling of 10018715405 in words is "ten billion, eighteen million, seven hundred fifteen thousand, four hundred five".