13955544247 has 4 divisors (see below), whose sum is σ = 14146716160. Its totient is φ = 13764372336.

The previous prime is 13955544233. The next prime is 13955544287. The reversal of 13955544247 is 74244555931.

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

It is a cyclic number.

It is not a de Polignac number, because 13955544247 - 2²³ = 13947155639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13955544247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13955544287) 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, 95585847 + ... + 95585992.

It is an arithmetic number, because the mean of its divisors is an integer number (3536679040).

Almost surely, 2^13955544247 is an apocalyptic number.

13955544247 is a deficient number, since it is larger than the sum of its proper divisors (191171913).

13955544247 is an equidigital number, since it uses as much as digits as its factorization.

13955544247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191171912.

The product of its digits is 3024000, while the sum is 49.

The spelling of 13955544247 in words is "thirteen billion, nine hundred fifty-five million, five hundred forty-four thousand, two hundred forty-seven".