11904943515 has 16 divisors (see below), whose sum is σ = 20168375328. Its totient is φ = 5975814656.

The previous prime is 11904943513. The next prime is 11904943517. The reversal of 11904943515 is 51534940911.

11904943515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11904943513) and next prime (11904943517).

It is a cyclic number.

It is not a de Polignac number, because 11904943515 - 2¹ = 11904943513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11904943513) 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, 23342772 + ... + 23343281.

It is an arithmetic number, because the mean of its divisors is an integer number (1260523458).

Almost surely, 2^11904943515 is an apocalyptic number.

11904943515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11904943515 is a deficient number, since it is larger than the sum of its proper divisors (8263431813).

11904943515 is a wasteful number, since it uses less digits than its factorization.

11904943515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46686078.

The product of its (nonzero) digits is 97200, while the sum is 42.

The spelling of 11904943515 in words is "eleven billion, nine hundred four million, nine hundred forty-three thousand, five hundred fifteen".