13144517905 has 8 divisors (see below), whose sum is σ = 15995582784. Its totient is φ = 10367506800.

The previous prime is 13144517899. The next prime is 13144517933. The reversal of 13144517905 is 50971544131.

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

It is not a de Polignac number, because 13144517905 - 2¹⁷ = 13144386833 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18513051 + ... + 18513760.

It is an arithmetic number, because the mean of its divisors is an integer number (1999447848).

Almost surely, 2^13144517905 is an apocalyptic number.

It is an amenable number.

13144517905 is a deficient number, since it is larger than the sum of its proper divisors (2851064879).

13144517905 is an equidigital number, since it uses as much as digits as its factorization.

13144517905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37026887.

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 13144517905 in words is "thirteen billion, one hundred forty-four million, five hundred seventeen thousand, nine hundred five".