9941018515 has 16 divisors (see below), whose sum is σ = 12636660960. Its totient is φ = 7481612800.

The previous prime is 9941018509. The next prime is 9941018561. The reversal of 9941018515 is 5158101499.

9941018515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-9941018515 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 170940 + ... + 221590.

It is an arithmetic number, because the mean of its divisors is an integer number (789791310).

Almost surely, 2^9941018515 is an apocalyptic number.

9941018515 is a deficient number, since it is larger than the sum of its proper divisors (2695642445).

9941018515 is a wasteful number, since it uses less digits than its factorization.

9941018515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52982.

The product of its (nonzero) digits is 64800, while the sum is 43.

The square root of 9941018515 is about 99704.6564358957. The cubic root of 9941018515 is about 2150.1906097459.

The spelling of 9941018515 in words is "nine billion, nine hundred forty-one million, eighteen thousand, five hundred fifteen".