13795981639 has 8 divisors (see below), whose sum is σ = 15052302720. Its totient is φ = 12540017400.

The previous prime is 13795981609. The next prime is 13795981691. The reversal of 13795981639 is 93618959731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13795981639 - 2¹³ = 13795973447 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 (13795981609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4899 + ... + 166180.

It is an arithmetic number, because the mean of its divisors is an integer number (1881537840).

Almost surely, 2^13795981639 is an apocalyptic number.

13795981639 is a deficient number, since it is larger than the sum of its proper divisors (1256321081).

13795981639 is a wasteful number, since it uses less digits than its factorization.

13795981639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178421.

The product of its digits is 11022480, while the sum is 61.

The spelling of 13795981639 in words is "thirteen billion, seven hundred ninety-five million, nine hundred eighty-one thousand, six hundred thirty-nine".