32821873921 has 16 divisors (see below), whose sum is σ = 33677238528. Its totient is φ = 31973385600.

The previous prime is 32821873907. The next prime is 32821873943. The reversal of 32821873921 is 12937812823.

It is not a de Polignac number, because 32821873921 - 2³¹ = 30674390273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32821879921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13841866 + ... + 13844236.

It is an arithmetic number, because the mean of its divisors is an integer number (2104827408).

Almost surely, 2^32821873921 is an apocalyptic number.

It is an amenable number.

32821873921 is a deficient number, since it is larger than the sum of its proper divisors (855364607).

32821873921 is a wasteful number, since it uses less digits than its factorization.

32821873921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3672.

The product of its digits is 290304, while the sum is 46.

The spelling of 32821873921 in words is "thirty-two billion, eight hundred twenty-one million, eight hundred seventy-three thousand, nine hundred twenty-one".