8251673353221 has 8 divisors (see below), whose sum is σ = 11152946632960. Its totient is φ = 5425757821152.

The previous prime is 8251673353219. The next prime is 8251673353223. The reversal of 8251673353221 is 1223533761528.

It is an interprime number because it is at equal distance from previous prime (8251673353219) and next prime (8251673353223).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8251673353221 - 2¹ = 8251673353219 is a prime.

It is a super-2 number, since 2×8251673353221² (a number of 27 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 (8251673353223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18839436661 + ... + 18839437098.

It is an arithmetic number, because the mean of its divisors is an integer number (1394118329120).

Almost surely, 2^{8251673353221} is an apocalyptic number.

It is an amenable number.

8251673353221 is a deficient number, since it is larger than the sum of its proper divisors (2901273279739).

8251673353221 is a wasteful number, since it uses less digits than its factorization.

8251673353221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37678873835.

The product of its digits is 1814400, while the sum is 48.

The spelling of 8251673353221 in words is "eight trillion, two hundred fifty-one billion, six hundred seventy-three million, three hundred fifty-three thousand, two hundred twenty-one".