13809380146 has 8 divisors (see below), whose sum is σ = 20716192044. Its totient is φ = 6903982800.

The previous prime is 13809380111. The next prime is 13809380171. The reversal of 13809380146 is 64108390831.

It can be written as a sum of positive squares in 2 ways, for example, as 12391029225 + 1418350921 = 111315^2 + 37661^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328885 + ... + 368488.

Almost surely, 2^13809380146 is an apocalyptic number.

13809380146 is a deficient number, since it is larger than the sum of its proper divisors (6906811898).

13809380146 is an equidigital number, since it uses as much as digits as its factorization.

13809380146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707276.

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 13809380146 in words is "thirteen billion, eight hundred nine million, three hundred eighty thousand, one hundred forty-six".