13809380145 has 32 divisors (see below), whose sum is σ = 24110179200. Its totient is φ = 6693642240.

The previous prime is 13809380111. The next prime is 13809380171. The reversal of 13809380145 is 54108390831.

It is not a de Polignac number, because 13809380145 - 2¹¹ = 13809378097 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13809380097 and 13809380106.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 756081 + ... + 774129.

It is an arithmetic number, because the mean of its divisors is an integer number (753443100).

Almost surely, 2^13809380145 is an apocalyptic number.

13809380145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13809380145 is a deficient number, since it is larger than the sum of its proper divisors (10300799055).

13809380145 is a wasteful number, since it uses less digits than its factorization.

13809380145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22705.

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 13809380145 in words is "thirteen billion, eight hundred nine million, three hundred eighty thousand, one hundred forty-five".