13845356515 has 8 divisors (see below), whose sum is σ = 16615372320. Its totient is φ = 11075655552.

The previous prime is 13845356513. The next prime is 13845356519. The reversal of 13845356515 is 51565354831.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 13845356515 - 2¹ = 13845356513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13845356513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32266 + ... + 169504.

It is an arithmetic number, because the mean of its divisors is an integer number (2076921540).

Almost surely, 2^13845356515 is an apocalyptic number.

13845356515 is a deficient number, since it is larger than the sum of its proper divisors (2770015805).

13845356515 is a wasteful number, since it uses less digits than its factorization.

13845356515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157421.

The product of its digits is 1080000, while the sum is 46.

The spelling of 13845356515 in words is "thirteen billion, eight hundred forty-five million, three hundred fifty-six thousand, five hundred fifteen".