13845287555 has 64 divisors (see below), whose sum is σ = 19384634880. Its totient is φ = 9387648000.

The previous prime is 13845287551. The next prime is 13845287579. The reversal of 13845287555 is 55578254831.

13845287555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 117666²-1.

It is not a de Polignac number, because 13845287555 - 2² = 13845287551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13845287497 and 13845287506.

It is not an unprimeable number, because it can be changed into a prime (13845287551) 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 63 ways as a sum of consecutive naturals, for example, 24591704 + ... + 24592266.

It is an arithmetic number, because the mean of its divisors is an integer number (302884920).

Almost surely, 2^13845287555 is an apocalyptic number.

13845287555 is a deficient number, since it is larger than the sum of its proper divisors (5539347325).

13845287555 is a wasteful number, since it uses less digits than its factorization.

13845287555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932.

The product of its digits is 6720000, while the sum is 53.

The spelling of 13845287555 in words is "thirteen billion, eight hundred forty-five million, two hundred eighty-seven thousand, five hundred fifty-five".