32921808313 has 4 divisors (see below), whose sum is σ = 32933769588. Its totient is φ = 32909847040.

The previous prime is 32921808223. The next prime is 32921808317. The reversal of 32921808313 is 31380812923.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25158083769 + 7763724544 = 158613^2 + 88112^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32921808313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32921808317) 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, 5976508 + ... + 5982013.

It is an arithmetic number, because the mean of its divisors is an integer number (8233442397).

Almost surely, 2^32921808313 is an apocalyptic number.

It is an amenable number.

32921808313 is a deficient number, since it is larger than the sum of its proper divisors (11961275).

32921808313 is a wasteful number, since it uses less digits than its factorization.

32921808313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11961274.

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 32921808313 in words is "thirty-two billion, nine hundred twenty-one million, eight hundred eight thousand, three hundred thirteen".