32739645481 has 9 divisors (see below), whose sum is σ = 34229349021. Its totient is φ = 31312201932.

The previous prime is 32739645479. The next prime is 32739645487. The reversal of 32739645481 is 18454693723.

It is a happy number.

The square root of 32739645481 is 180941.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 32739645481 - 2¹ = 32739645479 is a prime.

It is a super-2 number, since 2×32739645481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32739645487) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4157710 + ... + 4165576.

Almost surely, 2^32739645481 is an apocalyptic number.

32739645481 is the 180941-st square number.

32739645481 is the 90471-st centered octagonal number.

It is an amenable number.

32739645481 is a deficient number, since it is larger than the sum of its proper divisors (1489703540).

32739645481 is an frugal number, since it uses more digits than its factorization.

32739645481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15780 (or 7890 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 52.

The spelling of 32739645481 in words is "thirty-two billion, seven hundred thirty-nine million, six hundred forty-five thousand, four hundred eighty-one".