32832138386581 has 4 divisors (see below), whose sum is σ = 32832819783232. Its totient is φ = 32831456989932.

The previous prime is 32832138386549. The next prime is 32832138386599. The reversal of 32832138386581 is 18568383123823.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 32832138386581 - 2⁵ = 32832138386549 is a prime.

It is a super-2 number, since 2×32832138386581² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32832138306581) 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, 340626045 + ... + 340722418.

It is an arithmetic number, because the mean of its divisors is an integer number (8208204945808).

Almost surely, 2^{32832138386581} is an apocalyptic number.

It is an amenable number.

32832138386581 is a deficient number, since it is larger than the sum of its proper divisors (681396651).

32832138386581 is an equidigital number, since it uses as much as digits as its factorization.

32832138386581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681396650.

The product of its digits is 39813120, while the sum is 61.

The spelling of 32832138386581 in words is "thirty-two trillion, eight hundred thirty-two billion, one hundred thirty-eight million, three hundred eighty-six thousand, five hundred eighty-one".