13218451873263 has 96 divisors (see below), whose sum is σ = 23749183890432. Its totient is φ = 6898595558400.

The previous prime is 13218451873201. The next prime is 13218451873339. The reversal of 13218451873263 is 36237815481231.

13218451873263 is a `hidden beast` number, since 1 + 3 + 21 + 8 + 451 + 87 + 32 + 63 = 666.

13218451873263 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13218451873263 - 2⁸ = 13218451873007 is a prime.

It is a super-2 number, since 2×13218451873263² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13218451873463) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 35973598 + ... + 36339188.

It is an arithmetic number, because the mean of its divisors is an integer number (247387332192).

Almost surely, 2^{13218451873263} is an apocalyptic number.

13218451873263 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13218451873263 is a deficient number, since it is larger than the sum of its proper divisors (10530732017169).

13218451873263 is a wasteful number, since it uses less digits than its factorization.

13218451873263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366085 (or 366082 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The spelling of 13218451873263 in words is "thirteen trillion, two hundred eighteen billion, four hundred fifty-one million, eight hundred seventy-three thousand, two hundred sixty-three".