13664835764867 has 6 divisors (see below), whose sum is σ = 15895829359188. Its totient is φ = 11712716369844.

The previous prime is 13664835764861. The next prime is 13664835764893. The reversal of 13664835764867 is 76846753846631.

It is a happy number.

13664835764867 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 13664835764867 - 2¹⁴ = 13664835748483 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13664835764794 and 13664835764803.

It is not an unprimeable number, because it can be changed into a prime (13664835764861) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139437099593 + ... + 139437099690.

It is an arithmetic number, because the mean of its divisors is an integer number (2649304893198).

Almost surely, 2^{13664835764867} is an apocalyptic number.

13664835764867 is a deficient number, since it is larger than the sum of its proper divisors (2230993594321).

13664835764867 is an equidigital number, since it uses as much as digits as its factorization.

13664835764867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278874199297 (or 278874199290 counting only the distinct ones).

The product of its digits is 2926264320, while the sum is 74.

The spelling of 13664835764867 in words is "thirteen trillion, six hundred sixty-four billion, eight hundred thirty-five million, seven hundred sixty-four thousand, eight hundred sixty-seven".