13805012918052 has 36 divisors (see below), whose sum is σ = 35316438677520. Its totient is φ = 4546229152752.

The previous prime is 13805012917981. The next prime is 13805012918069. The reversal of 13805012918052 is 25081921050831.

13805012918052 is a `hidden beast` number, since 1 + 3 + 8 + 0 + 501 + 2 + 91 + 8 + 0 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 13805012917989 and 13805012918007.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2310072802 + ... + 2310078777.

Almost surely, 2^{13805012918052} is an apocalyptic number.

13805012918052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13805012918052 is an abundant number, since it is smaller than the sum of its proper divisors (21511425759468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13805012918052 is a wasteful number, since it uses less digits than its factorization.

13805012918052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4620151672 (or 4620151667 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 45.

Adding to 13805012918052 its reverse (25081921050831), we get a palindrome (38886933968883).

The spelling of 13805012918052 in words is "thirteen trillion, eight hundred five billion, twelve million, nine hundred eighteen thousand, fifty-two".