13929316840 has 24 divisors (see below), whose sum is σ = 31342642470. Its totient is φ = 5571428160.

The previous prime is 13929316829. The next prime is 13929316873. The reversal of 13929316840 is 4861392931.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 4743627876 + 9185688964 = 68874^2 + 95842^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 737110 + ... + 755770.

Almost surely, 2^13929316840 is an apocalyptic number.

13929316840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13929316840 is an abundant number, since it is smaller than the sum of its proper divisors (17413325630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13929316840 is an frugal number, since it uses more digits than its factorization.

13929316840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37333 (or 18668 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 46.

The spelling of 13929316840 in words is "thirteen billion, nine hundred twenty-nine million, three hundred sixteen thousand, eight hundred forty".