7853279321 has 16 divisors (see below), whose sum is σ = 8566210560. Its totient is φ = 7177444560.

The previous prime is 7853279281. The next prime is 7853279323. The reversal of 7853279321 is 1239723587.

It is a cyclic number.

It is not a de Polignac number, because 7853279321 - 2²² = 7849085017 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7853279323) 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, 13385 + ... + 126038.

It is an arithmetic number, because the mean of its divisors is an integer number (535388160).

Almost surely, 2^7853279321 is an apocalyptic number.

It is an amenable number.

7853279321 is a deficient number, since it is larger than the sum of its proper divisors (712931239).

7853279321 is a wasteful number, since it uses less digits than its factorization.

7853279321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139556.

The product of its digits is 635040, while the sum is 47.

The square root of 7853279321 is about 88618.7300800457. The cubic root of 7853279321 is about 1987.6977593444.

The spelling of 7853279321 in words is "seven billion, eight hundred fifty-three million, two hundred seventy-nine thousand, three hundred twenty-one".