32691323447 has 12 divisors (see below), whose sum is σ = 34187676600. Its totient is φ = 31257890928.

The previous prime is 32691323443. The next prime is 32691323531. The reversal of 32691323447 is 74432319623.

It is not a de Polignac number, because 32691323447 - 2² = 32691323443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32691323398 and 32691323407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32691323443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1553804 + ... + 1574702.

It is an arithmetic number, because the mean of its divisors is an integer number (2848973050).

Almost surely, 2^32691323447 is an apocalyptic number.

32691323447 is a deficient number, since it is larger than the sum of its proper divisors (1496353153).

32691323447 is a wasteful number, since it uses less digits than its factorization.

32691323447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23902 (or 23879 counting only the distinct ones).

The product of its digits is 653184, while the sum is 44.

The spelling of 32691323447 in words is "thirty-two billion, six hundred ninety-one million, three hundred twenty-three thousand, four hundred forty-seven".