32051641721 has 12 divisors (see below), whose sum is σ = 35895047076. Its totient is φ = 28588079520.

The previous prime is 32051641649. The next prime is 32051641807. The reversal of 32051641721 is 12714615023.

It can be written as a sum of positive squares in 2 ways, for example, as 18966798400 + 13084843321 = 137720^2 + 114389^2 .

It is not a de Polignac number, because 32051641721 - 2¹⁴ = 32051625337 is a prime.

It is a super-2 number, since 2×32051641721² (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 (32051641021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2492546 + ... + 2505371.

It is an arithmetic number, because the mean of its divisors is an integer number (2991253923).

Almost surely, 2^32051641721 is an apocalyptic number.

It is an amenable number.

32051641721 is a deficient number, since it is larger than the sum of its proper divisors (3843405355).

32051641721 is a wasteful number, since it uses less digits than its factorization.

32051641721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4997992 (or 4997981 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 32051641721 in words is "thirty-two billion, fifty-one million, six hundred forty-one thousand, seven hundred twenty-one".