7842821195 has 32 divisors (see below), whose sum is σ = 10399574016. Its totient is φ = 5630544000.

The previous prime is 7842821141. The next prime is 7842821201. The reversal of 7842821195 is 5911282487.

It is not a de Polignac number, because 7842821195 - 2⁶ = 7842821131 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 an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2036762 + ... + 2040608.

It is an arithmetic number, because the mean of its divisors is an integer number (324986688).

Almost surely, 2^7842821195 is an apocalyptic number.

7842821195 is a deficient number, since it is larger than the sum of its proper divisors (2556752821).

7842821195 is a wasteful number, since it uses less digits than its factorization.

7842821195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4331.

The product of its digits is 322560, while the sum is 47.

The square root of 7842821195 is about 88559.7041266512. The cubic root of 7842821195 is about 1986.8150356169.

The spelling of 7842821195 in words is "seven billion, eight hundred forty-two million, eight hundred twenty-one thousand, one hundred ninety-five".