14642331021 has 24 divisors (see below), whose sum is σ = 21450106496. Its totient is φ = 9623188800.

The previous prime is 14642331017. The next prime is 14642331023. The reversal of 14642331021 is 12013324641.

It is a happy number.

14642331021 is a `hidden beast` number, since 1 + 4 + 642 + 3 + 3 + 10 + 2 + 1 = 666.

It is not a de Polignac number, because 14642331021 - 2² = 14642331017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14642331023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1837596 + ... + 1845546.

Almost surely, 2^14642331021 is an apocalyptic number.

It is an amenable number.

14642331021 is a deficient number, since it is larger than the sum of its proper divisors (6807775475).

14642331021 is a wasteful number, since it uses less digits than its factorization.

14642331021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10833 (or 10830 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 14642331021 its reverse (12013324641), we get a palindrome (26655655662).

The spelling of 14642331021 in words is "fourteen billion, six hundred forty-two million, three hundred thirty-one thousand, twenty-one".