14539020642 has 20 divisors (see below), whose sum is σ = 32578176246. Its totient is φ = 4846340160.

The previous prime is 14539020607. The next prime is 14539020649. The reversal of 14539020642 is 24602093541.

It is a happy number.

14539020642 is a `hidden beast` number, since 1 + 4 + 5 + 3 + 9 + 0 + 2 + 0 + 642 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12984374601 + 1554646041 = 113949^2 + 39429^2 .

It is a super-2 number, since 2×14539020642² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 14539020597 and 14539020606.

It is not an unprimeable number, because it can be changed into a prime (14539020649) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 44873359 + ... + 44873682.

Almost surely, 2^14539020642 is an apocalyptic number.

14539020642 is an abundant number, since it is smaller than the sum of its proper divisors (18039155604).

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

14539020642 is an equidigital number, since it uses as much as digits as its factorization.

14539020642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89747055 (or 89747046 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 14539020642 in words is "fourteen billion, five hundred thirty-nine million, twenty thousand, six hundred forty-two".