12554043515 has 8 divisors (see below), whose sum is σ = 16223687088. Its totient is φ = 9270678240.

The previous prime is 12554043493. The next prime is 12554043521. The reversal of 12554043515 is 51534045521.

12554043515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12554043515 - 2⁸ = 12554043259 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 96569501 + ... + 96569630.

It is an arithmetic number, because the mean of its divisors is an integer number (2027960886).

Almost surely, 2^12554043515 is an apocalyptic number.

12554043515 is a deficient number, since it is larger than the sum of its proper divisors (3669643573).

12554043515 is a wasteful number, since it uses less digits than its factorization.

12554043515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193139149.

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 12554043515 in words is "twelve billion, five hundred fifty-four million, forty-three thousand, five hundred fifteen".