13670135515 has 4 divisors (see below), whose sum is σ = 16404162624. Its totient is φ = 10936108408.

The previous prime is 13670135497. The next prime is 13670135519. The reversal of 13670135515 is 51553107631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51553107631 = 17 ⋅3032535743.

It is a cyclic number.

It is not a de Polignac number, because 13670135515 - 2¹³ = 13670127323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13670135519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1367013547 + ... + 1367013556.

It is an arithmetic number, because the mean of its divisors is an integer number (4101040656).

Almost surely, 2^13670135515 is an apocalyptic number.

13670135515 is a deficient number, since it is larger than the sum of its proper divisors (2734027109).

13670135515 is an equidigital number, since it uses as much as digits as its factorization.

13670135515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2734027108.

The product of its (nonzero) digits is 47250, while the sum is 37.

The spelling of 13670135515 in words is "thirteen billion, six hundred seventy million, one hundred thirty-five thousand, five hundred fifteen".