13923045408 has 24 divisors (see below), whose sum is σ = 36547994448. Its totient is φ = 4641015104.

The previous prime is 13923045361. The next prime is 13923045413. The reversal of 13923045408 is 80454032931.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

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, 72515766 + ... + 72515957.

It is an arithmetic number, because the mean of its divisors is an integer number (1522833102).

Almost surely, 2^13923045408 is an apocalyptic number.

It is an amenable number.

13923045408 is an abundant number, since it is smaller than the sum of its proper divisors (22624949040).

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

13923045408 is a wasteful number, since it uses less digits than its factorization.

13923045408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145031736 (or 145031728 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 13923045408 in words is "thirteen billion, nine hundred twenty-three million, forty-five thousand, four hundred eight".