32694787489 has 27 divisors (see below), whose sum is σ = 41204087667. Its totient is φ = 25855384464.

The previous prime is 32694787487. The next prime is 32694787493. The reversal of 32694787489 is 98478749623.

It is a happy number.

The square root of 32694787489 is 180817.

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

It can be written as a sum of positive squares in only one way, i.e., 4836507025 + 27858280464 = 69545^2 + 166908^2 .

It is not a de Polignac number, because 32694787489 - 2¹ = 32694787487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32694787487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 16453354 + ... + 16455340.

It is an arithmetic number, because the mean of its divisors is an integer number (1526077321).

Almost surely, 2^32694787489 is an apocalyptic number.

32694787489 is the 180817-th square number.

32694787489 is the 90409-th centered octagonal number.

It is an amenable number.

32694787489 is a deficient number, since it is larger than the sum of its proper divisors (8509300178).

32694787489 is an frugal number, since it uses more digits than its factorization.

32694787489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4014 (or 2007 counting only the distinct ones).

The product of its digits is 146313216, while the sum is 67.

The spelling of 32694787489 in words is "thirty-two billion, six hundred ninety-four million, seven hundred eighty-seven thousand, four hundred eighty-nine".