8122942819 has 8 divisors (see below), whose sum is σ = 8227512000. Its totient is φ = 8018417472.

The previous prime is 8122942813. The next prime is 8122942829. The reversal of 8122942819 is 9182492218.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 8122942819 - 2³ = 8122942811 is a prime.

It is a super-2 number, since 2×8122942819² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8122942811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 535167 + ... + 550135.

It is an arithmetic number, because the mean of its divisors is an integer number (1028439000).

Almost surely, 2^8122942819 is an apocalyptic number.

8122942819 is a deficient number, since it is larger than the sum of its proper divisors (104569181).

8122942819 is a wasteful number, since it uses less digits than its factorization.

8122942819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21917.

The product of its digits is 165888, while the sum is 46.

The square root of 8122942819 is about 90127.3699771607. The cubic root of 8122942819 is about 2010.1931960368.

The spelling of 8122942819 in words is "eight billion, one hundred twenty-two million, nine hundred forty-two thousand, eight hundred nineteen".