10243505540 has 12 divisors (see below), whose sum is σ = 21511361676. Its totient is φ = 4097402208.

The previous prime is 10243505527. The next prime is 10243505543. The reversal of 10243505540 is 4550534201.

10243505540 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 2 ways, for example, as 2796505924 + 7446999616 = 52882^2 + 86296^2 .

It is not an unprimeable number, because it can be changed into a prime (10243505543) 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 3 ways as a sum of consecutive naturals, for example, 256087619 + ... + 256087658.

It is an arithmetic number, because the mean of its divisors is an integer number (1792613473).

Almost surely, 2^10243505540 is an apocalyptic number.

10243505540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10243505540 is an abundant number, since it is smaller than the sum of its proper divisors (11267856136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10243505540 is a wasteful number, since it uses less digits than its factorization.

10243505540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512175286 (or 512175284 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The spelling of 10243505540 in words is "ten billion, two hundred forty-three million, five hundred five thousand, five hundred forty".