13649143067 has 4 divisors (see below), whose sum is σ = 15599020656. Its totient is φ = 11699265480.

The previous prime is 13649143043. The next prime is 13649143087. The reversal of 13649143067 is 76034194631.

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

It is not a de Polignac number, because 13649143067 - 2¹⁴ = 13649126683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13649143087) 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, 974938784 + ... + 974938797.

It is an arithmetic number, because the mean of its divisors is an integer number (3899755164).

Almost surely, 2^13649143067 is an apocalyptic number.

13649143067 is a deficient number, since it is larger than the sum of its proper divisors (1949877589).

13649143067 is an equidigital number, since it uses as much as digits as its factorization.

13649143067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949877588.

The product of its (nonzero) digits is 326592, while the sum is 44.

The spelling of 13649143067 in words is "thirteen billion, six hundred forty-nine million, one hundred forty-three thousand, sixty-seven".