72014386529 has 4 divisors (see below), whose sum is σ = 72014971284. Its totient is φ = 72013801776.

The previous prime is 72014386487. The next prime is 72014386531. The reversal of 72014386529 is 92568341027.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 44837215504 + 27177171025 = 211748^2 + 164855^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72014386529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72014385529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27902 + ... + 380535.

It is an arithmetic number, because the mean of its divisors is an integer number (18003742821).

It is a 1-persistent number, because it is pandigital, but 2⋅72014386529 = 144028773058 is not.

Almost surely, 2^72014386529 is an apocalyptic number.

It is an amenable number.

72014386529 is a deficient number, since it is larger than the sum of its proper divisors (584755).

72014386529 is a wasteful number, since it uses less digits than its factorization.

72014386529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584754.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 72014386529 in words is "seventy-two billion, fourteen million, three hundred eighty-six thousand, five hundred twenty-nine".