13395049639 has 4 divisors (see below), whose sum is σ = 13416760224. Its totient is φ = 13373339056.

The previous prime is 13395049637. The next prime is 13395049651. The reversal of 13395049639 is 93694059331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93694059331 = 152443 ⋅614617.

It is a cyclic number.

It is not a de Polignac number, because 13395049639 - 2¹ = 13395049637 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 (13395049631) 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, 10854367 + ... + 10855600.

It is an arithmetic number, because the mean of its divisors is an integer number (3354190056).

Almost surely, 2^13395049639 is an apocalyptic number.

13395049639 is a deficient number, since it is larger than the sum of its proper divisors (21710585).

13395049639 is an equidigital number, since it uses as much as digits as its factorization.

13395049639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21710584.

The product of its (nonzero) digits is 2361960, while the sum is 52.

The spelling of 13395049639 in words is "thirteen billion, three hundred ninety-five million, forty-nine thousand, six hundred thirty-nine".