14473538640 has 240 divisors, whose sum is σ = 54460014336. Its totient is φ = 3413836800.

The previous prime is 14473538623. The next prime is 14473538707. The reversal of 14473538640 is 4683537441.

14473538640 is a `hidden beast` number, since 1 + 4 + 4 + 73 + 538 + 6 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 268345 + ... + 317735.

Almost surely, 2^14473538640 is an apocalyptic number.

14473538640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14473538640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27230007168).

14473538640 is an abundant number, since it is smaller than the sum of its proper divisors (39986475696).

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

14473538640 is a wasteful number, since it uses less digits than its factorization.

14473538640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49458 (or 49449 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 14473538640 in words is "fourteen billion, four hundred seventy-three million, five hundred thirty-eight thousand, six hundred forty".