13345677173 has 4 divisors (see below), whose sum is σ = 13564458828. Its totient is φ = 13126895520.

The previous prime is 13345677167. The next prime is 13345677179. The reversal of 13345677173 is 37177654331.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (13345677167) and next prime (13345677179).

It can be written as a sum of positive squares in 2 ways, for example, as 5393139844 + 7952537329 = 73438^2 + 89177^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13345677173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13345677179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109390736 + ... + 109390857.

It is an arithmetic number, because the mean of its divisors is an integer number (3391114707).

Almost surely, 2^13345677173 is an apocalyptic number.

It is an amenable number.

13345677173 is a deficient number, since it is larger than the sum of its proper divisors (218781655).

13345677173 is an equidigital number, since it uses as much as digits as its factorization.

13345677173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218781654.

The product of its digits is 1111320, while the sum is 47.

The spelling of 13345677173 in words is "thirteen billion, three hundred forty-five million, six hundred seventy-seven thousand, one hundred seventy-three".